According to bird experts Kenn and Kimberly Kaufman, much about bird flying is dependent on the species, season, and what else the bird is doing. Songbirds that feed on insects vary in the elevation ...

Do you know why blue-footed boobies have blue feet? Author Laura Erickson does, and you’ll find the answers to this and many other great questions in her book, The Bird Watching Answer Book. (For the ...

Bird feathers are unique wonders—born before birds, shared with dinosaurs, vital for flight, warmth, display, and survival.

More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a new study in the journal Evolution, researchers ...

Some feathered dinosaurs may have lost the ability to fly, revealing that the evolution of flight was far more complex than ...