Traditional Culture Encyclopedia - Photography and portraiture - Morphological characteristics of white-headed harrier
Morphological characteristics of white-headed harrier
The female bird is dark brown, with yellow-white or yellow-white skin from the head to the pillow and throat, and thin black longitudinal stripes on the top of her head; The flight feathers and tail feathers are dark brown, the ridicule inside the flight feathers is shallow, and there are white spots at the base; The lateral tail feathers turn reddish brown. Young birds are similar to female birds, but brown, and the vertical stripes on the top of their heads are thin and not obvious.
Young birds can't fly or walk after hatching. They only have fluff on their heads, trunks and thighs, so they can see pink skin. The newly hatched white-headed harrier has a black upper beak and a fleshy or pink lower beak. The edge of the beak is red. As young birds grow up, their beaks and legs turn yellow, the skin around their eyes turns dark gray, and their beaks are completely black. In the process of discoloration, the beak root is light blue-gray at first, and then slowly turns black.
Size measurement: weight ♂530-660g, ♀ 620-740g; Body length ♂490-543mm, ♀ 521-600 mm; Mouth peak ♂2 1-22mm, ♀ 21-24mm; Wing ♂375-382mm, ♀ 367-416mm; Tail ♂2 12-2 15mm, ♀ 222-245 mm; Tarsometatarsal ♂75-86mm, ♀ 78-86 mm (Note: ♂ male; ♀ Female)
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