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Yellow-crowned amazon
The yellow-crowned amazon or yellow-crowned parrot (''Amazona ochrocephala''), is a species of parrot, native to the tropical South America and Panama. The taxonomy is highly complex, and the yellow-headed (''A. oratrix'') and yellow-naped amazon (''A. auropalliata'') are sometimes considered subspecies of the yellow-crowned amazon. Except in the taxonomic section, the following deals only with the nominate group (including subspecies ''xantholaema'', ''nattereri'' and ''panamensis'').
==Description==
Subspecies in the nominate group (including subspecies ''xantholaema'', ''nattereri'' and ''panamensis'') have a total length of 33–38 cm (13–15 in). As most other amazon parrots, it has a short squarish tail and primarily green plumage. It has dark blue tips to the secondaries and primaries, and a red wing speculum, carpal edge (leading edge of the wing at the "shoulder") and base of the outer tail-feathers.〔 The red and dark blue sections are often difficult to see when the bird is perched, while the red base of the outer tail-feathers only infrequently can be seen under normal viewing conditions in the wild.〔 The amount of yellow to the head varies, with nominate, ''nattereri'' and ''panamensis'' having yellow restricted to the crown-region (occasionally with a few random feathers around the eyes〔), while the subspecies ''xantholaema'' has most of the head yellow.〔 All have a white eye-ring. They have a dark bill with a large horn (gray) or reddish spot on the upper mandible except ''panamensis'', which has a horn colored beak. Males and females do not differ in plumage. Except for the wing speculum, juveniles have little yellow and red to the plumage.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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