| A | B |
|---|
| flightless birds | these birds can run quickly or skilled swimmers |
| water birds | usually have webbed feet for swimming or long legs for wading |
| perching birds | songbirds make up a large group of these birds; they perch on branches and have a special trait that keeps their feet closed around a branch when sleeping |
| birds of prey | these birds hunt and eat other vertebrates; they have sharp claws on their feet and a sharp, curved beak |
| Osprey and owls | examples of birds of prey |
| Chickadees and parrots | examples of perching birds |
| ducks and loons | examples of water birds |
| penguins and ostrich | examples of flightless birds |
