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house finch
The house finch (''Haemorhous mexicanus'') is a bird in the finch family Fringillidae. It is found in North America, where its range has increased since the mid-twentieth century, and in the islands of Hawaii. This species and the other "American rosefinches" are placed in the genus ''Haemorhous'' by the American Ornithologists' Union but have usually been included in ''Carpodacus''.
==Description==
This is a moderately-sized finch. Adult birds are and span . Body mass can vary from , with an average weight of . Among standard measurements, the wing chord is , the tail is , the culmen is and the tarsus is . Adults have a long, square-tipped brown tail and are a brown or dull-brown color across the back with some shading into deep gray on the wing feathers. Breast and belly feathers may be streaked; the flanks usually are. In most cases, adult males' heads, necks and shoulders are reddish. This color sometimes extends to the belly and down the back, between the wings. Male coloration varies in intensity with the seasons〔(【引用サイトリンク】 title=IV Birds – House Finch )〕 and is derived from the berries and fruits in its diet. As a result, the colors range from pale straw-yellow through bright orange (both rare) to deep, intense red. Adult females have brown upperparts and streaked underparts.
Their song is a rapid, cheery warble or a variety of chirps.
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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