Animals are finely adapted to their native habitats, but when they are introduced to other ecosystems, they can become ...

Sea ducks such as Common eiders, grassland birds such as Western meadowlarks and Lark buntings, and forest species such as Pinyon jays in the West and Bachman's sparrow in the East are among a wide ...

U. S. State of the Birds Report, produced by a coalition of leading science and conservation organizations, reveals continued widespread declines in American bird populations across all mainland and ...

You've probably heard of invasive plants, but what about invasive birds? These common nonnative species are now abundant in ...