Flight feathers (Pennae volatus) are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird;...

groups. Although feathers cover most of the bird's body, they arise only from certain well-defined tracts on the skin. They aid in flight, thermal insulation...

A quill is a writing tool made from a moulted flight feather (preferably a primary wing-feather) of a large bird. Quills were used for writing with ink...

different types of feathers: contour, flight, down, filoplumes, semiplumes, and bristle feathers. Feathers were not originally meant for flight. The exact reason...

non-avian dinosaur species also possessed feathers in some shape or form. The extent to which feathers or feather-like structures were present in dinosaurs...

the secondary flight feathers, known as the secondary coverts, and those on the outer wing, which overlay the primary flight feathers, the primary coverts...

durable, typically lasting many matches without any impairment to their flight. Feather shuttles are easily damaged and should be replaced every three or four...

impressions of feathers. Because these feathers are of an advanced form (flight feathers), these fossils are evidence that the evolution of feathers began before...

trimming a bird's primary wing feathers or remiges so that it is not fully flight-capable, until it moults, sheds the cut feathers and grows new ones. This...

pennaceous feather is a type of feather present in most modern birds and in some other species of maniraptoriform dinosaurs. A pennaceous feather has a stalk...

adaptations that developed to aid flight. There are, for example, numerous terms describing the complex structural makeup of feathers (e.g., barbules, rachides...

and down feathers are generally identified as the main target, although in some cases, tail and flight feathers are affected. Although feather-plucking...

these are the flight feathers mentioned above. There are typically 12 to 16 tail feathers. James's flamingos molt their wing- and body feathers according...

side to the rear of the feather. This feather anatomy, during flight and flapping of the wings, causes a rotation of the feather in its follicle. The rotation...

five small flight feathers, with the exact number depending on the species. There also are minor covert feathers overlying the flight feathers. Like the...

shed some old feathers, then pin feathers grow in to replace the old feathers. As the pin feathers become full feathers, other feathers are shed. This...

week. Steppe buzzard molt their feathers rapidly upon arrival at wintering grounds and seems to split their flight feather molt between breeding ground in...

re-defined it in 2001 as all dinosaurs that possessed feathered wings used in flapping flight, and the birds that descended from them. Despite being...

calligraphy. A quill is a pen made from a flight feather of a large bird, most often a goose. To make a quill, a feather must be cured through aging or heat-treatment...

"superprecocial". Examples are the megapode birds, which have full-flight feathers at hatching and which, in some species, can fly on the same day. Enantiornithes...

their body. The down feathers are small and hairlike at the base of each flight feather. The legs and feet are thin and lack feathers, and are vulnerable...

predominantly grey plumage, with a flattened dark crest and black flight feathers and thighs. Breeding can take place at any time of year but tends to...

chrysanthemum feathering. The contour, tail and flight feathers do not stop growing, and they do not have the necessary barbs and barbules for the feather's structure...

long feathers on the legs of Microraptor were true flight feathers as seen in modern birds, with asymmetrical vanes on the arm, leg, and tail feathers. As...

head, binocular vision, binaural hearing, sharp talons, and feathers adapted for silent flight. Exceptions include the diurnal northern hawk-owl and the...

"Interspecific variation in the structural properties of flight feathers in birds indicates adaptation to flight requirements and habitat". Functional Ecology....

rapidly. Fledgling falcons, in their first year of flying, have longer flight feathers, which make their configuration more like that of a general-purpose...

strong, with shorter down-like feathery growths leading into longer "flight feathers"; the resemblance even spurs fanciful marketing phrases like "silver...

species. Cuckoos have 10 primary flight feathers and 9–13 secondary flight feathers. All species have 10 tail feathers, apart from the anis, which have...

where it is an introduced species. Black swans are black-feathered birds, with white flight feathers. The bill is bright red, with a pale bar and tip; and...