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 ...

From outwitting predators to raising a family, speed can boost a bird’s chances of survival. Learn about the fastest bird ...

Colorado and other Rocky Mountain states have altitudinal migrants, such as the Clark's nutcracker, the mountain chickadee ...

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.

Here are eight bird species who lay colourful and eye catching eggs. The American Robin is known for its striking blue eggs. The robin’s eggs are often speckled with darker flecks, adding an extra ...