Some 1 million birds were in Colorado on Tuesday. Colorado and other Rocky Mountain states have altitudinal migrants, such as ...

The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.

From the mountain-dwelling Goulds in the Sky Islands of New Mexico and Arizona to the notoriously cagey Osceola of the ...

I pulled onto a gravel road just before 7 a.m., making my way to the shore of one of Freezout Lake's many nearby ponds. Just south of Choteau, the area sits among north central Montana's rolling hills ...

These impressive growths are a symbol of status and a weapon used in epic battles across the Rocky Mountains. Fighting for dominance or mating rights, males face each other, rear up on their hind ...

There will soon be a noisy, colorful bird appearing in the Tehachapi Mountains, with the annual return of the beautiful Bullock's Orioles. These interesting and ornamental birds are called neotropical ...

BILLINGS — A Bozeman hunter’s bird dog has alerted health officials to the possibility that the tick that carries Lyme ...

Rocky Mountain National Park has provided habitat for more than 60 species of mammals, including the first wolf and a growing population of moose; more than 280 species of birds; 11 species of ...

Some 1 million birds were in Colorado on Tuesday. Colorado and other Rocky Mountain states have altitudinal migrants, such as the Clark's nutcracker, the mountain chickadee and rosy finches.