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Wing clipping. Wing clipping is the process of 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 procedure is usually carried out by avian veterinarians, breeders, or the bird's owners, and primarily on pet birds like parrots.
Vision is the most important sense for birds, since good eyesight is essential for safe flight. Birds have a number of adaptations which give visual acuity superior to that of other vertebrate groups; a pigeon has been described as "two eyes with wings". [1] Birds are theropods, [2][3] and the avian eye resembles that of other sauropsids, with ...
Also defined: outer wing. The inner wing of a bird is that portion of the wing stretching from its connection to the body and through the "wrist" joint. The outer wing stretches from the wrist to the wingtip. [262] iris The coloured outer ring that surrounds a bird's pupil. Though brown predominates, the iris may be of or include a variety of ...
The veterinarian will likely ask the owner about the bird's housing, diet, and activities, then examine the birds feathers, eyes, ears, and nares for signs of illness. He or she will probably acquire a Gram's stain, and may also clip the bird's wings and toenails if requested. He or she will likely offer advice about caring for the pet.
Pinioning is the act of surgically removing one pinion joint, the joint of a bird 's wing farthest from the body, to prevent flight. Pinioning is often done to waterfowl and poultry. It is not typically done to companion bird species such as parrots. This practice is unnecessary and restricted in many countries.
The common snipe is a well camouflaged bird, it is usually shy and conceals itself close to ground vegetation and flushes only when approached closely. When flushed, they utter a sharp note that sounds like scape, scape and fly off in a series of aerial zig-zags to confuse predators. [ 12 ]
The pecten or pecten oculi is a comb -like structure of blood vessels belonging to the choroid in the eye of a bird. It is a non- sensory, pigmented structure that projects into the vitreous humor from the point where the optic nerve enters the eyeball. [1] The pecten is believed to both nourish the retina and control the pH of the vitreous ...
The mallard (/ ˈ m æ l ɑːr d, ˈ m æ l ər d /) or wild duck (Anas platyrhynchos) is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa.