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Calliope hummingbird
The calliope hummingbird (''Selasphorus calliope'') is a very small hummingbird native to the United States and Canada and, during winter, Central America. It was previously considered the only member of the genus ''Stellula'', but recent evidence suggests placement in the genus ''Selasphorus''. This bird was named after the Greek muse Calliope. The genus name means "little star".
==Description==
This is the smallest breeding bird found in Canada and the United States. The only smaller species ever found in the U.S. is the bumblebee hummingbird, an accidental vagrant from Mexico. An adult calliope hummingbird can measure in length, span across the wings and weigh .〔(Calliope Hummingbird, Life History, All About Birds – Cornell Lab of Ornithology ). Allaboutbirds.org. Retrieved on 2012-08-22.〕〔(Calliope hummingbird Info ). Imnh.isu.edu. Retrieved on 2012-08-22.〕 These birds have glossy green on the back and crown with white underparts. Their bill and tail are relatively short. The adult male has wine-red streaks on the throat, green flanks and a dark tail. Females and immatures have a pinkish wash on the flanks, dark streaks on the throat and a dark tail with white tips. The only similar birds are the rufous hummingbird and the Allen's hummingbird, but these birds are larger with more distinct and contrasting rufous markings on tail and flanks, and longer central tail feathers.
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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