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The golden-crowned kinglet (''Regulus satrapa'') is a very small songbird. Adults are olive-gray on the upperparts with white underparts, with thin bills and short tails. They have white wing bars, a black stripe through the eyes and a yellow crown surrounded by black. The adult male has an orange patch in the middle of the yellow crown. Their breeding habitat is coniferous forests across Canada, the northeastern and western United States, Mexico and Central America. They nest in a well-concealed hanging cup suspended from a conifer branch. These birds migrate to the United States. Some birds are permanent residents in coastal regions and in the southern parts of their range. Northern birds remain further north in winter than the ruby-crowned kinglet. They forage actively in trees or shrubs, mainly eating insects, insect eggs and spiders. They give a series of high-pitched calls on a single note, and tend not to fear human approach. ==Description== Adults are olive-gray on the upperparts with white underparts, with thin bills and short tails. They have white wing bars, a black stripe through the eyes and a yellow crown surrounded by black. The adult male has an orange patch in the middle of the yellow crown. The juvenile is similar to the adult, but with a browner back and without the yellow crown. This is one of the smallest passerines in North America. Its length, at , is probably the shortest of any American passerine. However, its weight, which averages around , with a range of ,〔Dunning, Jr., J. B. 1993. ''CRC handbook of avian body masses''. CRC Press, Boca Raton, FL.〕 is marginally more on average than the long-tailed Bushtit〔Hertz, P. E., J. V. Remsen, Jr., and S. I. Jones. 1976. ''Ecological complementarity of three sympatric parids in a California oak woodland''. Condor 78:307-316.〕 and Black-tailed Gnatcatcher.〔Atwood, J. L. 1988. ''Speciation and geographic variation in Black-tailed Gnatcatchers''. Ornithol. Monogr. 42〕 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「Golden-crowned kinglet」の詳細全文を読む スポンサード リンク
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