Birds

Birds

Any feathered vertebrate.

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alice1

Beijing, China

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Birds

Median line

Animals; Birds

For certain bird species, the median line is the stripe along the very top part of its head (through the crown).

The median secondary coverts are feathers on the wing covering the bases of the greater secondary coverts. Their tips can often be a slightly lighter coloured or white, giving the wing an illusion of ...

Plumes

Animals; Birds

The plumes are large, conspicuous, showy feathers that are not a good survival adaptation from the predator-prey point of view because they make the bird much more visible. However, plumes signal ...

Primaries

Animals; Birds

The primaries are the flight feathers specialised for flight. They are attached to the "hand" equivalent part of the wing.

Pinnae

Animals; Birds

The Pinnae are elongated feathers projecting from the upper body area, generally the neck or head. In the Prairie Chicken for example, the males have longer pinnae than females and they erect them ...

Pelagic

Animals; Birds

The pelagic is a type of bird whose habitat are on the open ocean rather than in a coastal region or on inland bodies of water (lakes, rivers). An example of a pelagic bird is the blacklegged ...