Birds

Birds

Any feathered vertebrate.

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alice1

Beijing, China

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Birds

Gape

Animals; Birds

The gape is a different word for commissure. it is the hinge where the mandibles meet. In most birds only the lower jaw can move, just like in humans. Some birds can move both mandibles, such as ...

Lower mandibular tomia

Animals; Birds

The lower mandibular tomia is the cutting edge of the lower mandible, similar to the human teeth when looking at the skull only.

The malar stripe is the area below the eye and bill and parallel to the throat. It is located on the sides of the chin and stretches downwards. Generally, the malar stripe is brightly colored. It is ...

Inner wing

Animals; Birds

The inner wing is similar to the inner arm of a human. It encompasses the shoulder, the secondaries and the secondary coverts.

Iris

Animals; Birds

The iris is the coloured part of the eye, equal to the human iris, located around the pupil. The iris does not play a role in actual vision.

Inner primaries

Animals; Birds

The inner primaries are a group of feathers closest to the body on the wing of the bird. They are generally covered partially by the secondaries.

Dihedral

Animals; Birds

When a bird in flight holds its wings such that they appear to form a "V" shape they are called dihedral. Generally, wings are held in this state when gliding.