Start the day smarter. Get all the news you need in your inbox each morning. With common bird populations on the ...

Lesser coverts duller. Juvenile: resembles adult female. Unstreaked. The male is unlike any other finch in North America; the Wilson’s warbler is the only other bright yellow species with a ...

Spring is officially here. Use our map to find the most common backyard bird sighted in your state during April.

Peak bird migration is about to start in Colorado and around the country. Here are tools for tracking and identifying the ...

The North American population (nominate ssp.) exhibits extensive geographic variation, with clinal variation: larger birds with shorter ... more resembles the house finch than native sparrows.