Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained their wings. Birds are found worldwide and ...

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

Even fewer would have the patience to catch, weigh, measure, and identify hundreds of small birds and record their diets of seeds. But for the Grants, the rewards have been great: They have done ...

The finches in the above video were collected from the Galápagos Islands in 1835 by Charles Darwin and his colleagues during the second voyage of HMS Beagle (1831-1836). The different finch species on ...