Sized to scale, Pop Chart’s Birds of North America contains all of the country’s birds on a single 39-inch by 27-inch chart. They’re separated into groups and subgroups, including perching ...

Learn to identify every diurnal bird of prey in North America, or admire how many different types of gulls the continent is home to. If you’ve got a bird lover in your life, copies of the poster ...

Often taken for granted, the brightly plumaged male summer tanager is one of the more spectacular breeding birds of North America. The uniform bloodred feathers seen against a bright green ...

The latest creation from the data maniacs at Pop Chart Lab, “Birds of North America” contains every species of bird you can see in this part of the American continent, beautifully drawn.

House finches and purple finches are both small birds which are native to North America. Both species have stunning red and brown plumage which means that they are easily confused for each other.

In their second experiment, the scientists experimentally changed the head colours of the birds by dying them red or black to discover whether head colour was a communication "signal" between birds.

If You Flaunt It, You've Got It: How Red-heads Top The Pecking Order Date: December 29, 2005 Source: University of New South Wales Summary: Red-headed finches dominate their black-headed and ...