wing feathers

wing-tip sail

A wing-tip device to produce a significant reduction in drag. At the tip of the wing, there is a strong upflow, as the air spills over from the underside. The sails are angled so that they generate a forward component of force, or negative drag. Also known as wing feathers or winglets.

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References in periodicals archive ?

All ducks, geese and swans moult their large flight feathers, the primary wing feathers, every summer.

Mixed weather conditions are blooming great; Sunshine and heavy rain give plantlife growth burst

Abstract: Feather trauma is a common problem among pet birds, especially those with trimmed wing feathers, and often affects remiges and rectrices.

Rectricectomy With Pygostylectomy for Resolution of Feather Trauma in an Umbrella Cockatoo (Cacatua alba)

At the same time the ringer will check the bird's age, by looking at its wing feathers, and its health.

A bird in the hand..

Pellet damage to bills and feet can be repaired, and most bird taxidermists offer replacement of damaged wing feathers when required.

Prize from the Marsh: Valuable advice on preserving that special bird for the taxidermist

These rough patches are quill knobs, and in modern birds they anchor the wing feathers to the skeleton to help strengthen them for active flight.

Rare Fossil Bird: Mystery of Avian Extinctions

Then, it suffered an attack by ticks for which he used a herbal spray treatment and, in the monsoon, it started to naturally shed lot of wing feathers, which regrew by September.

Rare white-rumped vulture gets new lease of life atop Mumbai building

If you're really ambitious, you can buy a feather chopper and make your own fletching out of turkey wing feathers from a turkey you have taken.

Anticipation: VISIONS OF WHAT COULD BE ARE OFTENTIMES THE BEST PART OF A HUNT

Over his shoulder you can see the extended wing feathers of his bustle.

Men's Traditional: The Re-emergence or the "New style"

She said: "It's a male ringneck but the wing feathers are a bit of a mess, so not sure if it's a mutation of a ringneck."

Far eastern wild bird makes its home in... Gresford

The tail and wing feathers are gray, except for the black-bordered white tips on the tail.

Delicate, dynamic dove: fascinating facts that you may have never known about one of rural North America's fastest flyers

It is fortunately recovering but has a nasty bite mark on its body and all of its wing feathers on one side were ripped out.

Youngsters in sickening catapult attacks on ducks, claims sanctuary

Standing at a height of 4ft with long, elegant necks and a drooping, curved bustle of wing feathers spreading over the tail, cranes make a spectacular sight.