





THE WILD SCENE / WHERE TO
Everyone wants to know of good places to go and do photography. The Wild Scene offers articles about places both around Colorado as well as other spots around the country. In addition to location specific articles, features on wildlife and places to photograph them will also be included. These articles were written by club members and have appeared in past issues of the Urban Wildlife Photo Club monthly newsletter. Check back often as articles from old newsletter archives will be added in the coming weeks.
St.
Vrain State Park - Barbour Ponds
By Barbara Rich
The State of Colorado has over 40 jewels in the State Park system. One of my favorites for photography is Barbour Ponds, which is now officially called St. Vrain State Park. This state park is the one that is visible as you drive I-25 at the SH 119 interchange (exit number 240). The park is located just west of I 25 and north of SH 119. During the summer the campsites are full of fishermen (the fishing is supposed to be very good!) and the ponds have many pelicans, geese, a large variety of ducks and other waterfowl. This park includes four ponds and is on the St. Vrain River.
My favorite time of year for St. Vrain (Barbour Ponds) is winter. There are few, if any fishermen and instead of waterfowl you have Bald Eagles and hawks to keep you company. At sunrise it is a great shot of frozen ponds and snow covered Longs Peak in the background. The winter has such spectacular sunrises and the color reflected off the ice enhances the photograph. I have spotted many deer foraging in the pond area just before dawn, and then they seem to vanish as the winter sun rises. It is quiet and peaceful during the winter months; often I am the only person in the park.
During the summer the noise of the interstate can be distracting while at Barbour Ponds, and is the reason I will not park my RV there. Peace and quiet are a requirement for me to sleep. During the summer the campgrounds are full of campers; this is close enough to Denver to make an easy getaway for the weekend. It is only 30 miles north on I-25 to get to some of the best warm water fishing in northern Colorado. I still enjoy my trip to the area as a day trip, and I always find many subjects to photograph. In the spring there is pond scum to play with and the antics of birds finding a mate and getting their nest ready. The bridges in this area have been providing support for many Swallows. I can sit on the banks of the Saint Vrain River for hours watching them build the mud nest and later take care of their young. You will find other nesting birds here, meadowlark, and red winged blackbirds and once I was fortunate to discover a humming bird nest.
Springtime
and wildflowers, namely Texas Wildflowers
By Bob Dean
Springtime in Texas means many things to many people. To nature photographers it means wildflowers. Although wildflowers bloom all year round in parts of this large state, Texas is famous nation-wide for the colorful blooms that usher the new growing season.
The intensity of the spring flower bonanza is affected by the weather patterns of the preceding summer, fall and winter. A dry summer and a wet fall ensure that the flowers don't go to seed too early and that they germinate at the proper time. A cold winter prevents other plants from sprouting early and crowding the flowering plants. A moderately wet spring provides the necessary moisture for lavish blooms.
Texas is a very large state, so knowing where to go to find subjects requires some planning. Arguably, the best part of the state is in the central section, around the state capital of Austin. Austin itself has large displays of wildflowers along most of the roadsides. Route 360, the Capital of Texas Highway, Interstate 35 and Route 290 are good places to start. Texans in this area are serious about wildflowers. The National Wildflower Research Center is located southwest of Austin and has a 42 acre parcel seeded with many types including Indian paintbrush, bluebonnet and evening primrose. This Center is a great place to visit early in your trip to help learn what you can see and to find out where it's blooming. Their address is 4801 La Crosse Ave. Take loop 1 (Mopac) south past Slaughter Lane. Turn and go east on La Crosse Avenue for a short distance to the Center. The phone number is (512) 292-4627. The Center also maintains a wildflower hotline at (512) 832-4059. The center was inspired by Lady Bird Johnson as part of her efforts to beautify America and the Texas area in particular.
If you have the time and the inclination to out to the countryside, you can find great flower opportunities in any direction you go from Austin. Let's start with the regions to the east and southeast of town.
Washington County, Yoakum County, DeWitt County and the Brazos River region are east of town. In Washington County, any of the side roads north of Route 290, near the towns of Brenham and Hemstead are good locations. The Brazos area is typically best early in the season (late March and early April). Yoakum and DeWitt Counties are typically best throughout the month of April. Bluebonnets bloom early followed by the yellow flowering plants. This area produces Indian blankets, primroses and hollyhocks amid the old oak trees and historic church cemeteries. The Guadalupe River Valley, in particular, has great examples of this type of subject, as is the Brazos River Valley between Chappell Hill and Washington.
The La Grange area is southeast. It has wildflowers blooming normally from late March into late April. Old farm buildings, grazing cattle, rural churches and old bridges set off the blossoms here. Travel the local roads off of Highways 71 and 90 around La Grange and Columbus.
To the north and northwest of Austin you can see great displays of flowers around the Highland Lakes area. The roads around the towns of Burnet, Marble Falls and Kingsland as well as the north shore of Lake L.B. Johnson offer photographic opportunities. Also travel route 71 northwest of Austin from Llano to Johnson City. LBJ State Park near Stonewall is consistently good. Mason County to the northwest of Austin can be a good bet. Mason County has many stone houses and stone fences to add drama to your images. The roads around the town of Mason and Fredonia are worth exploring.
The Rio Grande region of southern Texas in and around Big Bend National Park is a good stop. This arid region is very dependent on rainfall for good flower production. Spring and late summer rains will generate carpets of flowers among the flowering cactus. Prime spring blooming time is March to May. The Chisos Mountains sport blooming wildflowers later in spring. The Dagger Flats area may have dramatic giant dagger flowers in April.
East Texas, with its abundant rainfall boasts year around blooming flowers. The areas near the Texas-Oklahoma border from Wichita Falls to Paris are dotted with forest and swampland. These areas have dogwood and wild azaleas in the spring with bluebonnets, wild passionflowers and primrose later in the season. Far eastern Texas, around Beaumont has great flower potential as well. The Big Thicket National Preserve is wonderful most of the year. At Big Thicket you may find dogwood, wild azalea and sundew in spring, Indian blanket and magnolia in summer and cardinal flower and ironweed in fall.
Don't overlook the Dallas area in your travels to Texas. The Dallas-Ft Worth region has spectacular blooms from late March through late May. While all of the metro roads have potential, drive out to northeast Tarrant County, around the town of North Richland Hills. Red and yellow Indian paintbrush, pink buttercups, bluebonnets and verbena mix with small yellow daisies along the roadsides.
As you travel through Texas on a quest for the perfect wildflower photograph, pay careful attention to your safety. Pull off the roads completely and watch for traffic, particularly in the more heavily traveled areas. Texas law, at this time, does not prohibit picking of wildflowers but to do so may detract from the experience of others. The law does however come down hard on trespassing and damage to property, so be considerate as well as careful.
Dubois,
Wyoming and the Big Horn Sheep Center
By Bob Dean
In west central Wyoming lies the former logging town of Dubois. This small community is in the home range of the largest herd of bighorn sheep in the lower 48 states and is the site of the National Bighorn Sheep Center.
The Center's mission is one of public education about the habitat and the conservation needs of the Rocky Mountain bighorn sheep. This educational experience is enhanced by the proximity of the Whiskey Basin Wildlife Habitat Area, located less than five miles east of the Center.
The best way to enjoy this area is to first visit the interpretive center in Dubois and then to tour the big horn habitat in the Whiskey Basin area. Dubois is located about 50 miles southeast of Grand Teton National Park, by way of the dramatic Togwotee Pass. The Bighorn Center is about one half-mile northwest of town on U.S. highway 26/287.
The Center's facility houses exhibits and displays dealing with various aspects of sheep ecology including habitat, biology and behavior. The center is more than a static display dedicated to sheep; it is an active part of the community. The gift shop displays the work of many local artists and the staff provides a source of cultural as well as scientific information to local people as well as visitors.
Summer hours run from Memorial Day through Labor Day (9:00 A.M. to 8 P.M.) and winter hours, like the Wyoming weather, are variable. Winter activities center on wildlife viewing tours in the Whiskey Basin Area. Information on hours and tours is available by calling or writing the Center. The address is PO Box 1435, Dubois, WY 82513 and the phone number is (888) 209-2795 or (307) 455-3429.
After
visiting the Sheep Center proceed to the sheep viewing area. The sheep population
in Whiskey Basin normally numbers about 900 although recent outbreaks of lungworm
and pneumonia have reduced the herd somewhat. This area is a good winter habitat
because the famous (infamous?) Wyoming wind keeps the slopes free of snow and
exposes the bluebunch wheatgrass and Idaho fescue that make up the normal diet
of the sheep. Sagebrush and other shrubs are also present and provide an additional
food source when the grasses are covered by snow.
To reach the viewing
area drive east from the center on Highway 26/287 for 4.5 miles. At the sign for
Jaley' Fish Hatchery and Whiskey Basin Wildlife Habitat Area turn on to the side
road and start climbing toward the mountains. As you go along you will see a panoramic
view of the ridges and meadows that are the winter home to the bighorn herd. The
best time to visit this area is during the breeding seasons from late November
through the end of December. The large rams challenge one another for breeding
rights and can be observed and photographed relatively easily.
There are several stops along the tour road that are worth the time. About two miles up the Trail Lake Road is a kiosk with a detailed map and information on the area. Please read and take to heart the section on ethical viewing. These animals need all of their energy to survive the harsh winters and any additional stress from humans can be very detrimental. One additional word of caution, the road does go through some sections of private land, please respect those areas and continue through without stopping.
As you continue up the road there are several places you may want to stop. There are no signs so watch your odometer for mileage. At mile 1.0 there is a cattle guard. From this spot you can see a treeless slope on the right. Bighorns as well as elk and mule deer frequent this meadow but bighorns can be seen at any place in this region. You can see several lakes from this vantagepoint. On the left are two small lakes that attract waterfowl during migration seasons, if you are fortunate you may see trumpeter swans. The string of three larger lakes, further up the valley, includes Torrey, Ring and Trail Lakes. As you pass these lakes, watch for osprey. There is an osprey nest near the head of Torrey Lake. The nest is on private land so don't stop.
At mile 3.9, between Ring and Trail Lakes, you will see a bank on the right side of the road. This is a natural mineral lick for bighorns, especially in the winter. If you do see sheep here, photograph them from a distance and wait until they leave before moving through. About ¾ of a mile up the road (mile 4.6) Torrey Creek comes very near the road. The willows in this area are a food and shelter source for moose. Beavers are a fairly common sight here as well, particularly around dawn and dusk.
At mile 6.6 is the trailhead into the Fitzpatrick Wilderness. This trail affords an opportunity to see dramatic waterfalls, soaring golden eagles, rugged granite formations and a few miles up, a spectacular alpine lake.
When you plan your trip to this part of Wyoming, remember to dress for the weather. The temperature can change quickly and precipitation in the form of either snow or rain can move in without warning. Dress in layers and bring water repellent gear for you and your camera. Also bring food, water and basic survival equipment.
More information and maps are available from the Bighorn Sheep Center. Food, gas and lodging are available in Dubois.
As the dog days of summer approach, can the beauty of fall be far behind? It's never to early to start preparation for your fall color shooting. The great color of foliage in the fall makes it difficult to take a bad photo, but with some forethought and planning you can spend the winter enjoying some spectacular images.
What exactly causes the leaf color to change from the deep green of summer to the autumn hues? The yellows and orange tints come from carotenoid pigments that are always present in leaves. The reds and purples are caused by anthocyanins that develop on sunny days during the growing season. These colors are present long before the fall color season but are masked by green chlorophyll. In the fall the green fades as the trees and shrubs prepare for their winter dormant phase. As the chlorophyll drains from the leaf, the color pigments become visible. The intensity of color depends very much on local weather conditions. Normal rainfall during spring and summer normally produces the best color. Warm, sunny days and cool nights, as fall approaches, also yields better color. The peak color normally lasts about one week and this peak slowly moves south.
When you plan your fall outings, there are many destinations you can choose. The classic place for fall color is the northeastern U.S. Consider a trip to New England in late September or early October. Great photo opportunities abound from Vermont's White Mountains (especially the mid third of the state around Burlington and St. Johnsburg) to the Connecticut River Valley (between Hartford and Old Saybrook, Connecticut). The other New England states offer great color as well. When in the northeast, make sure that you spend a good portion of your time traveling the backroads and country lanes. Not only are the color shots great, but you can include quaint farm buildings, covered bridges, and villages in your photos. Peak color in New England usually occurs in the first ten days of October plus or minus a week.
The eastern half of the country has many other fall color opportunities. In the Great Lakes region there are many fine destinations. If you find yourself in Michigan in the later part of September, consider traveling to the area around the Pere Marquette and Mackinaw State Forests in the northern part of the Lower Peninsula. A trip farther north into Ontario, Canada can provide excellent fall color with water features as a bonus. The peak time here is the same as the northeast.
Other eastern locations offering excellent color are The Great Smoky Mountains NP in Tennessee, Acadia NP in Maine, West Virginia's Canaan Valley and the Adirondack Mountains in New York.
The west provides a much different type of fall color photo opportunity. While the east has large expanses of many color variations, the west offers almost exclusively golden aspen and cottonwood with an occasional red highlight. These trees are mixed with dark green conifers and the majestic background of the Rocky, Sierra and Cascade Mountains. The color in the west moves with elevation, not just latitude as in the east.
Some of the best color in the Rockies is in southern Colorado's San Juan Mountains. The areas around Silverton, Ouray, and Telluride have been the fall destination of many photographers over the years. Further north in Wyoming, the Yellowstone and Grand Teton areas are alive with fall color in late September. Other western opportunities include the Cascade Mountains of Washington, the Columbia River Gorge of Oregon and Yosemite NP in central California.
There is a third area of color opportunity you may want to consider. The tundra and taiga forests of Alaska and northern Canada change color much earlier than the lower 48 and southern Canada. These lower lying plants and shrubs change to magnificent colors that can be great for tight shots and medium format work. Travel destinations of White Mountains NRA, Arctic NP and the Chatanika River are popular with fall photographers.
When planning your photography there are some geographic considerations you many want to think about. The east has large expanses of color but many overcast or hazy days. These atmospheric conditions provide better opportunities for close up, pattern or tight compositions. The west typically has more sunny days and higher contrast situations. These conditions often allow for "big" scenic photographs. These are just ideas and local conditions really determine best subject matter. The equipment needed for fall photography is fairly simple compared to some other types of outdoor and wildlife work. Your 35mm SLR with a 28mm wide-angle, a 50mm macro and a short to medium zoom telephoto should cover just about any situation. A tripod is a must because of the chances for low light and small aperture shots. Three other requirements are an 81A, an 81B and a polarizing filter. The 81 series filters can be used to add extra warmth to your photos when the available light is cold and flat. On sunny days the shadows are rich in blue light, so use the 81 series filters to add warmth to the reds in your subject. Polarizers are helpful for increasing the saturation of leaf colors and for darkening blue skies. Polarizers limit reflection from leaf surfaces. Believe it or not, leaves in the fall can be very shiny and the need to limit reflections is very real. Polarizers are more effective for sidelit subjects. Don't use 81 series and polarizers together as the added light/glass interfaces may degrade your images. Subjects for fall pictures are as varied as any photo endeavor. This is a double-edged sword. When venturing into the field in the fall, you must be careful in composing your shots so you don't have boxes of pretty pictures with no real "zip". As with any set of composition rules, the following ideas are for the "guidance of the wise."
One of the composition rules should never be violated; make sure that you have a central theme and a simple composition. In fall color work it is very tempting to include everything you see in one shot. The result is normally a very busy but dull photo. When looking for subjects, watch both the big picture and the small scene. Look at the forest floor as you walk. Think about such things as reflections, motion (long shutter speeds on windy days), small groups of leaves (odd numbers are better), close up of leaf details, wet leaves, straight up or down shots, back lit subjects and panoramas. If you find a road winding into the forest, try for an S curve originating at the lower left of the frame. Try shooting just after a storm clears or perhaps during the storm to catch snowflakes as streaks on your film (shutter speeds of 1/15 to 1/30 of a second give the most pleasing streaks).
As you plan your composition, keep in mind that the color catches your interest but the composition holds it! The artistic part of composition is really what moves you. The composition and exposure need to convey the feeling you have when you trip the shutter. Elements such as lines, shapes and forms should be strong. Take care with the separation or merging of objects. Watch the edges of the frame to ensure branches and tree trunks are not crowded or cut off. The use of selective focus can be strong or can create distracting out of focus foregrounds or backgrounds.
The logistics of a fall color photo trip can be as varied as the subject matter. Most states where fall color is worth the trip have a hot line phone number, a web page or both. Contact the tourist department of the states that interest you for details and numbers. As you prepare to head out, pack your camera equipment and include clothing for any weather. Fall has as much variability in weather as it does in foliage.
Vicious monster, endangered animal, fascinating creature; each of these terms has been used when the topic of grizzly bears arises. There are bodies of evidence that can be cited to defend each one. To truly understand the great bears would require a lifetime of study, but you can be sure that any knowledge will help you in your quest to photograph these animals.
Grizzlies are one of three subspecies of brown bears found in the Northern Hemisphere. The other two are the Eurasian brown bear and the Alaskan brown bear, also somewhat mistakenly called the Kodiak bear. To the photographer working in North America, the grizzly and the Alaskan brown bear are of most interest and we will cover both under the umbrella of "grizzly".
Grizzlies historically ranged over all of the western and central parts of North America, from Alaska to northern Mexico and as far east as the Dakotas and Missouri River drainage. In modern times the pressure of human population expansion has reduced their range to Alaska, Western Canada, and a few pockets in the lower forty-eight states.
The physical description of a grizzly is characterized by form and shape. The bear has a large, stout body with a small head sporting nondescript ears. The legs are fairly equal in length front to back and tapered from the body down to the paws. The most distinguishing features of the grizzly include a long thick coat that can range from cream or cinnamon to black and can have hairs with white tips (hence the grizzled look which gives the bear its common name). Other distinguishing features are the pronounced shoulder hump (comprised of muscle mass), long front claws, and a narrow head with a long snout and jaw.
Grizzly bears vary widely in size with individual males being reported to weigh between 400 to well over 1000 pounds. Females are typically smaller but are still considered very large when compared to humans. The size of the bears is related to diet and the availability of food on a regular basis in particular. The largest of the bears are typically on the west coast where annual fish runs, along with ample plant food, provide a nutritious and reliable diet. The bears in the interior, where less food is typically available, are somewhat smaller.
Behavior
The behavior of grizzlies, as with all bears, is typical of any strong intelligent animal; that is, very unpredictable and based on the situation, the bear's previous experience, and on the personality of the individual bear. Bear behavior is basically driven by the need to insure reproductive success. This can take the form of sows defending their cubs, any bear defending its food supply, males challenging each other for territory, etc.
The cycle of a bear's life centers on winter denning, a time when the life of the bear begins or is renewed. The spring, summer and fall are spent eating large quantities of food to add a fat layer sufficient to see the animal through the winter. Diet changes as the seasons progress. Spring is a difficult time as the new plants are just getting started and the bears, recently emerged from their winter den need to start to replenish fat. The spring meals consist of new plant growth and if available, carrion from winter kill mammals such as elk and deer. Summer provides improved food availability as plant growth has continued with tubers and grasses becoming plentiful. In addition, in late summer fish runs begin and provide a rich source of fat and protein. Fall sees the continuation of fish runs and the explosion of berries for the final effort to prepare for winter. These animals will also eat insects and rodents anytime the opportunity presents itself. The first snow and cold of approaching winter triggers the denning instinct. When this time occurs, the grizzly seeks out a remote site and digs a den in a location suitable for a long winter nap. Bears do not hibernate in the classic sense as they won't experience significant body temperature drop and reduction of bodily functions. They do however achieve a reduced state of activity and show an increased efficiency in metabolism of fat. Observers have seen bears awaken in mid winter, emerge from their den and walk about only to re-enter and resume sleeping.
Mating and cub rearing
Grizzly bear females mate and produce their first liter between one and one-half and four and one-half years of age. The actual achievement of sexual maturity is dependent on food supply. The bears mate in the May/June time frame after a brief courtship, which can last between 2 and 15 days. Females may mate with multiple males. This "promiscuous" strategy has probably evolved because the other option would involve males defending their right to breed with the females, leading to violent confrontations between extremely powerful animals. This could easily reduce the reproductive success. Although these battles sometimes occur, they are more the exception than the rule. The female will carry the fertilized eggs until she dens in the October or November timeframe. Implantation will occur if the health of the female is sufficient for her to have a good chance of successfully denning and delivering her cubs. The cubs are born during the winter anywhere from February through March. They are less than a pound in weight at birth and nearly helpless. Liters are normally two or three cubs, again depending on the diet of the mom. The female will nurse the cubs as she sleeps until they emerge as a family in the spring. The cubs will stay with their mother for two to four years during which time she will defend them from danger, including male bears, and will teach them the skills needed to survive on their own.
Territory and Dominance
Each bear has a territory in which it lives its daily life. Territoriality too is related to reproduction. A male will normally have a large territory that can include tens to hundreds of square miles. This territory is marked regularly to reduce the chances of males encountering other males since solitary animals are jealous of their "space" and defend it vigorously. The territory of the female is significantly smaller than the male; therefore, a male's territory will include that of several females. The female will share her territory with her female offspring. Their extraordinary sense of smell is the primary method by which they identify territory. The animals will scratch tress and scrap the ground to leave a scent unmistakable to other bears.
Territorial behavior is typical, but in the situation were food supplies are highly concentrated, such as fish runs, a more tolerant attitude can prevail. Situations where groups of bears are fishing show only a temporary reduction in the size of a territory but adult bears continue to demand space.
Dominance in the life of a bear can take on many manifestations. Females will aggressively defend cubs against all threats, even large males. Males will establish a hierarchy through size, threat displays, or occasional combat. When bears do congregate, the hierarchy is maintained and is regularly demonstrated (such places as at the best fishing spots).
Male bears extend their dominance and reproductive drive to the point that they have been known to kill cubs.
Places to see and photograph Grizzlies
Photographing grizzly bears in the wild can be a dangerous excursion, so the utmost in planning and care is necessary. Most zoos and some wild game parks have grizzlies and occasionally photos with a decent background can be made. If you want to photograph them in the wild areas of the lower forty eight states there are populations in the Yellowstone ecosystem and in Glacier National Park. Check with the rangers as to potential locations and always follow the park regulations to the letter. It is advisable to try this activity in a group rather than alone. Before starting out on a bear photography trip read the book Bear Attacks by Stephen Herrero. This book may sound a bit gruesome, and in fact some of the accounts are a bit unnerving, but it provides a valuable insight into bear behavior and how to deal with bears.
In the natural world everything is in constant motion. Nowhere is this as visible as the migration of wildlife from one place to another. The avian members of the animal kingdom dont have a lock on migration but they do have the most visible for people all over the planet.
Birds migrate for one basic reason, to survive as a species. The driving factors are normally food supply and nesting territory. Migration normally takes place between the nesting and the non breeding season. The terms used here (nesting and non breeding) are specially chosen to allow for seasonal and geographic variations.
There are many different types of migration, depending on the time, direction, distance covered and magnitude of the behavior.
Complete migration is the type we think of generally when discussing migration. This term is applied when all members of a population leave a nesting area during the non breeding season. There is typically no overlap of nesting and non breeding territory. Consider the example of the rough-legged hawk that nest in the far north and winters in the lower forty eight states.
Partial migration is applicable when some individuals remain in the nesting area during the non breeding season while others leave for another area. Red tail hawks are representative of this behavior as some migrate while others remain in the nesting area. The result is an overlap of typical nesting territory with typical non breeding season territory.
Differential migration refers to differences in distance or seasonal movement of portions of a species. This is normally divided by age or sex. The herring gull nests in the Great Lakes area and migrates to one degree or another to the eastern seaboard. The first year birds tend to move the farthest, sometimes deep into the south. The second and third year birds dont go quite as far south while the adults (four years and older) remain much further north, even in the nesting territory. American kestrels demonstrate differential migration in that the males tend to remain closer to the nesting territory while the females migrate greater distances. The reasons for this behavior vary. The herring gull migration pattern is most likely due to social dominance where the younger, less aggressive birds move away from the more aggressive, older birds. In the case of the kestrel, the males remain close to the nesting territory to enhance their chances of reclaiming the best sites when nesting season returns.
Another type of migratory behavior is irruptive migration. This movement is irregular and normally driven by food or weather conditions which dont follow a normal seasonal pattern.
To assign a particular migration type to any population of birds is difficult because some sub species or particular groups may not do what others do. Natural selection has programmed the behavior of these groups so survival and reproductive chances are maximized.
The frame of reference for North America is typically north-south movement. This is generally referred to as latitudinal migration. Blue wing teal nest in the North Dakota pothole country and winter in the marshes of Louisiana, a typical north-south migration. Other species migrate in an east-west pattern, such as the white winged scoters that nest in Alaska and winters in western Ontario. This east-west movement is called longitudinal migration. This pattern is very much food source driven.
There are birds migrating from one elevation to another to achieve the climate and food requirements they need. This behavior can lead to significantly different migration routes, depending on the location. As an example, a subspecies of dark eyed junco, nesting in the mountains of West Virginia, migrates to the lowlands in winter. This is a journey of twenty to thirty miles. A very similar junco, nesting in the forests of northern Maine, may migrate over a thousand miles to achieve the same results.
If we move away from the common migratory behavior common in North America, we see many examples of very different behavior. In the southern hemisphere there are mirror image north-south journeys, called austral migration. Some of these migrants will actually cross the equator and show up in the north as rare bird alert material. One of the major differentiators between the hemispheres, leading to vast population differences, is the polar land mass. In the northern arctic there is substantial nesting habitat in the higher latitudes, yielding a large migratory population. In the south, the equivalent area is open water or the barren land mass of Antarctica.
The southern hemisphere does have it large bird populations, and these groups do have their migratory behavior patterns. The populations are much larger in the tropical and near tropical areas of Australia and Africa.
Seasonal migration in the southern hemisphere tends to follow the wet season, as the moisture tends to generate the food supply (particularly insects, the bottom of the avian food chain).
There
is an aspect to migration, besides the general knowledge, interesting to the nature
photographer. The fact that migrations can take significant time and energy means
that birds need to stop and rest along the way. Combine this with the regularity
of travel and the large numbers of migrants, the opportunity for photography can
be incredible.
Stopover
locations are the best places to get images of birds not living in your area on
a year around basis. These stopover locations are essential to successful migration
and breeding. Birds use these stopovers to gain and replenish fat used to provide
energy during long flights. The rest breaks can be as short as a few hours or
can last many weeks. Sand hill cranes from the Bosque del Apache refuge in New
Mexico will spend four to six weeks in the San Luis Valley of Colorado on their
northward migration to Gray Lake NWR in Idaho. This is a classic example
of a great opportunity for bird photography.
Waterfowl spring migration is very different from most other birds. Ducks and geese tend to eat their way to their destination. These birds travel as part of very large flocks and will stay at a location as long as the food source is viable. When the nourishment is gone, the birds will move on to the next location.
The knowledge of tactics used by birds during migration, as well as their routes, is very beneficial to the nature photographer. The tactics are varied, ranging from the hawk familys tendency to ride thermals to a high altitude and then soar, to the ducks rapid wing beat with frequent stops. Song birds tend to fly at night and roost during daylight hours at their stopover locations, while waterfowl and raptors fly during the day. Song birds also tend to migrate after a weather front has pasted so they may take advantage of the wind direction.
The knowledge of your subject is critical to the success of your photo work. Study the migration habits of birds coming through your area or check with local bird experts. There are two chances a year to catch these avian vagabonds, so dont be caught seeing the north end of the last south bound migrant.
Tanglewood Trail
By
Curtis Johnson
When we think of wildlife photography, we tend to emphasize animals. But, there is also a
form of wildlife that has no hooves, fangs, wings, talons or claws: wildflowers. We have a
wide variety of wildflowers in Colorado, and many places to find them within a short daytrip
from the Denver/Boulder area
.
With the severe drought this summer, I’ve not pursued many opportunities to photograph
wildflowers, but I did spend many weekends in 2011 looking for, and finding, wildflowers.
One of my favorites, Tanglewood, is a relatively easy drive south on Highway 285. Okay,
it’s easy for me, since I live right off 285 between Wadsworth & Kipling; it’s not too bad of a
trip from most of Denver, anyway.
To get there, go south on 285 (I know: it’s really west for a good many miles going out of
Denver, but the signs say South, so that’s what I’m going with) and turn right on Deer
Creek Rd/County Road 43. This is shortly before Bailey, so if you get there, you’ve missed
it. At about the 6.8 mile mark, the road forks; take the left fork. Three miles later, you’ll see
find the Deer Creek campground. Go to the right at the stream crossing. Going left takes
you up some private land, with limited space to turn around; I made that mistake once and
wouldn’t recommend it. The right-hand route takes you up to the Tanglewood trailhead.
Once you’ve gone right, the road narrows significantly and gets extremely rocky. In fact, it
gets rocky enough that I had to slow down in my Subaru and creep up the road. It’s not a
long way from the trailhead at that point, so it’s not too bad. It narrow enough for traffic in
only one direction and has turn-outs that allow one driver to pull aside to let another pass
through.
At this point, with my description of the narrow, rocky road, someone might wonder if it’s
worth going to Tanglewood to find wildflowers. It is. At the trailhead, I’ve seen a Prius, so I
Member "Where to" article know low ground-clearance vehicles can make it with relative ease. And, the narrowness of the road shouldn’t deter anyone either; I’ve seen, and pulled over for, large Winnebagos that had spent the night in the parking lot at the trailhead.
The guidebook I use lists a large variety of flowers for this trail, including wintercress, wild
roses, a couple varieties of penstemon, pink pussytoes, various violets, cinquefoils, and
Parry primrose. I’ve personally seen bluebells, claytonias, cowpen daisies, and lupines
there. The trail also follows a nice stream that, at points, is open enough to do some nice,
long, soft water shots. Last time I was out there, I also saw an enormous, red mushroom. I
took a photo and let the fungus alone. I know better than to sample unfamiliar fungi.
The altitude ranges from 11,691 to 11,941 feet. Keep this in mind if hiking with folks
sensitive to higher altitudes.
It’s been about a year since I’ve been out to Tanglewood, so I can’t say what this dry year
has done to any of the foliage. So, venture forth with the expectation that any flowers are a
bonus. If nothing else, it’s a beautiful, secluded place to hike.
At this point, I’ll recommend the guidebook I used to find this trail: Colorado’s Newest &
Best Wildflower Hike with text by Pamela Irwin and photography by David Irwin.