The report finds that about one-third of species, including many in the Mountain West, are at high or moderate concern from a ...

In the U.S. 42 species of birds have low and steeply declining populations that put them on the brink of disaster, scientists ...

Pinyon jay populations have declined by 85% in the last 50 years, making them one of the fastest declining bird species in North America. The U.S. Fish and Wildlife Service recently issued a ...

Plumage and behavior differ greatly between interior and coastal populations. Coastal populations of the western scrub-jays are confiding, tame, and easily seen. Interior populations are more ...