The feathers on the outer part of the wing spread apart on ... called thermals. Soaring birds hitch a ride on these thermals, circling up into the sky without any effort. Large seabirds, however ...

Birds have long been nature’s masters of flight. Their ability to glide, dive, and twist through the air with ease has ...

Rooks have have black plumage with a purple-blue sheen — and they have untidy-looking feathers around their thighs (like ...

These small feathers on top of birds’ wings lay flat during normal flight but flare up in turbulence during landing. By attaching flexible plastic strips – “covert flaps” – to the top of ...

But a bird wing is vastly more sophisticated than anything composed of sheet metal and rivets. From a central feather shaft extends a series of slender barbs, each sprouting smaller barbules ...

and they are covered in feathers that narrow to a point. Airplane wings are modeled after bird wings. The bones and muscles of the wing are also highly specialized. The main bone, the humerus ...

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 ...