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・ Red-tailed bristlebill
・ Red-tailed chipmunk
・ Red-tailed comet
・ Red-tailed greenbul
・ Red-tailed hawk
・ Red-tailed knobby newt
・ Red-tailed laughingthrush
・ Red-tailed leaflove
・ Red-tailed minla
・ Red-tailed monkey
・ Red-tailed newtonia
・ Red-tailed phascogale
・ Red-tailed shrike
・ Red-tailed sportive lemur
・ Red-flanked lorikeet
Red-footed booby
・ Red-footed falcon
・ Red-footed tortoise
・ Red-fronted antpecker
・ Red-fronted barbet
・ Red-fronted coot
・ Red-fronted coua
・ Red-fronted gazelle
・ Red-fronted lemur
・ Red-fronted lorikeet
・ Red-fronted macaw
・ Red-fronted parrot
・ Red-fronted parrotlet
・ Red-fronted rosefinch
・ Red-fronted serin


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Red-footed booby : ウィキペディア英語版
Red-footed booby

The red-footed booby (''Sula sula'') is a large seabird of the booby family, Sulidae. As suggested by the name, adults always have red feet, but the colour of the plumage varies. They are powerful and agile fliers, but they are clumsy in takeoffs and landings. They are found widely in the tropics, and breed colonially in coastal regions, especially islands.
==Description==

The red-footed booby is the smallest member of the booby and gannet family at about in length and with a wingspan of up to . The average weight of 490 adults from Christmas Island was .〔''CRC Handbook of Avian Body Masses, 2nd Edition'' by John B. Dunning Jr. (Editor). CRC Press (2008), ISBN 978-1-4200-6444-5.〕 It has red legs, and its bill and throat pouch are coloured pink and blue. This species has several morphs. In the white morph the plumage is mostly white (the head often tinged yellowish) and the flight feathers are black. The black-tailed white morph is similar, but with a black tail, and can easily be confused with the Nazca and masked boobies. The brown morph is overall brown. The white-tailed brown morph is similar, but has a white belly, rump, and tail. The white-headed and white-tailed brown morph has a mostly white body, tail and head, and brown wings and back. The morphs commonly breed together, but in most regions one or two morphs predominates; e.g. at the Galápagos Islands, most belong to the brown morph, though the white morph also occurs.
The sexes are similar, and juveniles are brownish with darker wings, and pale pinkish legs, while chicks are covered in dense white down.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Red-footed booby」の詳細全文を読む



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