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giant hummingbird
The giant hummingbird (''Patagona gigas'') is the largest member of the hummingbird family, weighing with a wingspan measuring approximately in length, and length of .〔(San Diego Zoo's Animal Bytes: Hummingbird )〕 This is approximately the same length as a European starling or a northern cardinal, though the giant hummingbird is considerably lighter due to its more slender build and fairly long bill. It is the only member of the genus ''Patagona''. This weight is almost twice that of the next heaviest recorded species, and ten times that of the smallest humming bird, ''Calypte helenae'', the "bee hummingbird."
== Description ==
In Bolivia, the giant hummingbird is known in Quechua as ''burro q'enti''. The Spanish word ''burro'' refers to its dull, relatively unattractive plumage compared to other locally occurring hummingbirds (e.g., red-tailed comet).〔 Typically members of ''P. gigas'' can be identified using their comparative size and characteristics such as the presence of an eye-ring, straight bill (longer than the head), dull colouration, very long wings (approaching tail tip when stowed), long and moderately forked tail, feathered tarsi to the toes and comparatively large sturdy feet. There is no difference between the sexes. Juvenile specimens can be determined by observing small corrugations on the lateral areas of the beak culmen.
The sub-species are visually distinguishable. ''P. g. peruviana'' has an overall yellowish brown appearance as well as the presence of a white on the chin and throat, where ''P. g. gigas'' has more of a olive green/brown colouration and absence of white on the chin and throat.〔
The Giant Hummingbird is distinct from other Hummingbirds in flight with occasional gliding flight observed, very rare in Trochilids. Literature leads to the belief this flight is strongly correlated to the elongated wings of the giant hummingbird, allowing more efficient glides than other Trochilids. The Giant hummingbird’s voice is a singular loud, sharp and whistling (“chip” ).
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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