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A bird that is naturally white, such as a swan, goose, or egret, is not an albino, nor is a bird that has seasonally alternating white plumage. [17] Four degrees of albinism have been described. The most common form is termed partial albinism, in which local areas of the bird's body, such as certain feathers, are lacking the pigment melanin ...
The resplendent quetzal (Pharomachrus mocinno) is a small bird found in Central America and southern Mexico that lives in tropical forests, particularly montane cloud forests. They are part of the family Trogonidae and have two recognized subspecies , P. m. mocinno and P. m. costaricensis .
The tail feathers are used to control flight acting as rudder and brake, only some of these feathers are as firmly attached as the bird's primaries. Contour feathers are arranged on the body of the bird in the manner of roof tiles. The tips of these feathers are waterproof and help protect the bird from the elements, while the inner parts of ...
Antique Tian-tsui (Kingfisher feather) hair pins. 19th century. Chinese Qing kingfisher feather tiara, circa 1851-1861AD. Tian-tsui (Chinese traditional: 點翠, Chinese simplified: 点翠, pinyin: diǎncuì, "dotting with kingfishers") is a style of Chinese art featuring kingfisher feathers. For 2,000 years, the Chinese have been using the ...
The crest is made up of semiplume feathers: a long rachis with barbs on either side. These are plumulaceous feathers, meaning that they are soft and bendable. In birds, these semiplumes are common along the head, neck, and upper back, and may be used for buoyancy and sensing vibrations. Crests on birds are generally used for display purposes.
Bird netting or anti-bird netting is a form of bird pest control. It is a net used to prevent birds from reaching certain areas. Bird protection netting comes in a variety of shapes and forms, The most common is a small mesh (1 or 2 cm squares) either extruded and bi-oriented polypropylene or woven polyethylene.
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The young birds' lack of a white tail is a signal of their immaturity clearly visible to conspecifics – to an adult Nicobar pigeon, it is obvious at a glance which flockmembers are neither potential mates, nor potential competitors for mates, nor old enough to safely guide a flock from one island to another.
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