On the day of the exam, the professor has a table with five paper bags ... the students are asked to identify stuffed birds whose bodies (except for their feet) are covered by bags.

Bird feet, like their bills, offer clues to the environmental niche that each species holds, although that’s not the case 100 percent of the time. (A semipalmated sandpiper has slightly webbed f ...

Researchers say the feathered specimen known as “Ugly Foot” or “Hobbit Foot” offers long-sought clues to the evolutionary path of birds. By Nicholas St. Fleur In the bustling amber markets ...

Birds are animals with a lot of specific and useful adaptations. A major one is the shapes of their feet. Have you ever noticed that one kind of bird’s foot can be wildly different from another ...