The Stokes Guide to Finches of the United States and Canada,” by Lillian Stokes and Matthew A. Young, published in 2024, is ...

Natural selection at its most powerful winnowed certain finches harshly during a severe drought in 1977. That year, the vegetation withered. Seeds of all kinds were scarce. The small, soft ones ...

There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...

Birds have feathers and a beak and lay hard-shelled eggs. Many birds are able to fly using their wings, but others such as ostriches are flightless and unable to fly. Some birds like penguins ...

Did you know that birds are evolved from dinosaurs. All birds lay eggs and they can look very different. They all have beaks, feathers, two legs and two wings. Most even have special feathers on ...