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northern potoo
The northern potoo (''Nyctibius jamaicensis'') is a nocturnal bird belonging to the potoo family, Nyctibiidae. It is found from Mexico south to Costa Rica and on the islands of Jamaica and Hispaniola. It was formerly classified as a subspecies of the common potoo (''Nyctibius griseus'') but is now usually treated as a separate species based on differences in vocalizations.
==Description==
It is a fairly large bird with a length of 38-46 centimetres. It has a long tail, long pointed wings, large head, very short legs and a small bill with a large gape. It is most commonly seen perched motionless in an upright position on branches or posts. The plumage is grey-brown with an intricate pattern of black, grey and cream markings. The cheeks are pale with a dark malar stripe below them. The large eye has a yellow iris which can shine red in light at night. The bird's calls are hoarse and guttural. They sound like "WHAAAH-whuh-whuh-whuh!"
The common potoo is virtually identical in appearance but has a very different voice consisting of a series of mournful, wailing whistles. The great potoo is larger and paler with no dark malar stripe.
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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