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''Ramphocelus'' is a Neotropical genus of birds of the tanager family. They have enlarged shiny whitish or bluish-grey lower mandibles, which are pointed upwards in display. However, this is greatly reduced in the females of most species. Males are black and red, orange or yellow, while females resemble a duller version of the males, or are brownish or greyish combined with dull red, orange or yellowish. ''Ramphocelus'' tanagers are found in semi-open areas. The nest is a cup built by the female of plant materials such as moss, rootlets, and strips of large leaves like banana or ''Heliconia'', and is often in a fairly open site in a tree. The female usually lays pale blue eggs, with grey, brown or lavender spots, and the young stay in the nest for only about 12 days. The songs of this genus are repetitions of rich one- or two-syllable whistles ''Ramphocelus'' tanagers hunt at forest edges or in second growth, taking insects in flight or picking them from leaves ==Taxonomy== The crimson-collared tanager is sometimes placed in a genus of its own as ''Phlogothraupis sanguinolenta'' (Howell and Webb 1995), and a genetic study suggests that it is less closely related to the other ''Ramphocelus'' tanagers than they are to each other (Hackett 1996). Its closest relative is masked crimson tanager. The other species form two superspecies. One includes crimson-backed, Huallaga, silver-beaked and Brazilian tanagers, and the other comprises Passerini's, Cherrie's and flame-rumped tanagers. The subspecies ''icteronotus'' of the flame-rumped tanager is sometimes considered a separate species, the lemon-rumped tanager, ''R. icteronotus'', and Passerini's and Cherrie's tanager were formerly lumped as scarlet-rumped tanager, ''R. passerinii'' (a treatment some authorities still prefer). 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「Ramphocelus」の詳細全文を読む スポンサード リンク
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