Keyword: Migration
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ANI082-00195
Bull trout (Salvelinus confluentus) swimming in the Bighorn Creek, in the Wigwam River drainage in British Columbia. This is one of the last, best places for spawning of the vulnerable (ICUN) and federally-threatened bull trout, and is part of the Kootenay River system, which sees an annual migration of bull trout from Lake Koocanusa, some fifty miles away. The fish prefer very cold water of 40 degrees or so in order to spawn, and the springs in this area provide that. Ram Creek flows into the Wigwam, and between the two of them they support some 5,000 bull trout.
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ANI082-00109
A pronghorn (Antilocapra americana) crossing under a fence near Medicine Hat, Alberta, Canada.
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ANI082-000117
Millions of monarch butterflies (Danaus plexippus) roost on the Chincua Mountain near Angangueo, Mexico. This is one of five wintering roosts for monarchs, where the cool mountain climate slows their metabolism enough for them to overwinter before migrating back northward in the spring. Logging threatens this spectacle–Already one of the five sites is no longer used by the butterflies due to the forest being cleared.
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ANI082-000116
Millions of monarch butterflies (Danaus plexippus) roost on the Chincua Mountain near Angangueo, Mexico. This is one of five wintering roosts for monarchs, where the cool mountain climate slows their metabolism enough for them to overwinter before migrating back northward in the spring. Logging threatens this spectacle–Already one of the five sites is no longer used by the butterflies due to the forest being cleared.
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ANI082-00194
Bull trout swim 50 miles upstream from Lake Koocanusa to spawn in the Wigwam River drainage.
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ANI082-00191
A pronghorn antelope, Antilocapra americana, crawls under a fence.
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ANI082-00192
A pronghorn antelope, Antilocapra americana, crossing under a fence near Medicine Hat, Alberta, Canada.
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ANI082-00193
A pronghorn antelope, Antilocapra americana, crossing under a fence near Medicine Hat, Alberta, Canada.
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ANI082-00190
A pronghorn antelope sneaks under a barbed wire fence.
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ANI082-00188
A herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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BIR003-00428
A flock of migrating federally endangered Sandhill cranes (Grus canadensis) at the Rowe Audubon Sanctuary in Gibbon, Nebraska.
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ANI082-00187
A herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00186
A bison (Bison bison) standing on the prairie at Maxwell State Game Preserve in Canton, Kansas.
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BIR003-00424
Thousands of sandhill cranes roost on the Platte River during their annual migratory stopover at the Rowe Audubon Sanctuary near Gibbon, NE. With water in the river fully appropriated for urban areas and agriculture, many wonder how long it will be until the river runs dry. Some 600,000 to 800,000 cranes use just a few miles of the river in central Nebraska–areas that have been been mechanically cleared of the woody vegetation that the birds can’t tolerate.
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BIR017-00034
White pelicans (Pelecanus erythrorhynchos) in migration flight over a barrier island fringing a Louisiana salt marsh in the Gulf of Mexico.
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ANI082-00181
Aerials of the Jonah Field in the Green River Basin, Wyoming. A once-wild area that’s now an industrial zone due to natural gas drilling. Sage grouse, mule deer and pronghorn antelope habitat has mostly been ruined here, with no end in sight as the drilling increases across the Pinedale Anticline, the large mesa that caps the gas deposits.
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ANI082-00182
Aerials of the Jonah Field in the Green River Basin, Wyoming. A once-wild area that’s now an industrial zone due to natural gas drilling. Sage grouse, mule deer and pronghorn antelope habitat has mostly been ruined here, with no end in sight as the drilling increases across the Pinedale Anticline, the large mesa that caps the gas deposits.
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ANI082-00171
A skull of an American bison (Bison bison) on the Triple U Ranch near Ft. Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00172
A large herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00173
A deceased American bison (Bison bison) on the Triple U Ranch near Ft. Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00174
A large herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00175
A large herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00176
A large herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00177
A large herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00178
A large herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00179
A large herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00180
A large herd of bison (Bison bison) running across the prairie on the Triple U Bison Ranch near Fort Pierre, South Dakota. This ranch has about 2,000 head of bison on over 50,000 acres.
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ANI082-00168
The snake pit at the 45th annual Mangum Rattlesnake Derby in Mangum, Oklahoma. This rattlesnake festival takes in between 1,500 and 2,000 pounds of western diamondback rattlesnakes (Crotalus atrox) each year. Some 30,000 people come here on the last weekend of April to see such things as a photo booth in which people can pose with a live rattler that’s been defanged and had its mouth stitched shut, a safari bus tour in which folks can pick up a live rattlesnake, a cafe serving rattlesnake meat, and a butcher shop.
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ANI082-00169
The snake pit at the 45th annual Mangum Rattlesnake Derby in Mangum, Oklahoma. This rattlesnake festival takes in between 1,500 and 2,000 pounds of western diamondback rattlesnakes (Crotalus atrox) each year. Some 30,000 people come here on the last weekend of April to see such things as a photo booth in which people can pose with a live rattler that’s been defanged and had its mouth stitched shut, a safari bus tour in which folks can pick up a live rattlesnake, a cafe serving rattlesnake meat, and a butcher shop.
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ANI082-00170
The snake pit at the 45th annual Mangum Rattlesnake Derby in Mangum, Oklahoma. This rattlesnake festival takes in between 1,500 and 2,000 pounds of western diamondback rattlesnakes (Crotalus atrox) each year. Some 30,000 people come here on the last weekend of April to see such things as a photo booth in which people can pose with a live rattler that’s been defanged and had its mouth stitched shut, a safari bus tour in which folks can pick up a live rattlesnake, a cafe serving rattlesnake meat, and a butcher shop.
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ANI082-00155
Herpetologists look for central newts (Notophthalmus viridescens louisianensis) at a vernal pool in Bennett Springs State Park near Lebanon, Missouri.
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ANI082-00156
Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.
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ANI082-00157
Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.
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ANI082-00158
Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.
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ANI082-00159
A western cottonmouth (Agkistrodon piscivorous) snake lies dead on the Clear Creek Levy Road, near Ware, Illinois. Road kills are one of the leading causes of death for snakes in the U.S.
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ANI082-00160
An Eastern ringnecked snake (Diadophis punctatus edwardsii) found on the Snake Road, near Ware, Illinois. This three mile stretch of road is closed to traffic when the snakes are migrating from limestone cliffs to the swamp nearby.
