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The wood quails are birds in the genus ''Odontophorus'' of the New World quail family, which are residents in forests in the Americas.〔Johnsgard, ("The American Wood Quails ''Odontophorus''" ) ''World Pheasant Association Journal'' 4 (1979), pp. 93–99.〕 The core range of the genus is centered in the lowlands and foothills of the northern Andes of Colombia and the mountain ranges of Central America; however, some species occur elsewhere in tropical and subtropical South America. These are shy species, and as a consequence are amongst the most difficult galliform birds to study or even observe. The best chance of seeing wood quail is at dawn or dusk, when they may feed at the side of a road or on a forest track in family groups up to 12 birds. Nevertheless, when protected, they can become surprisingly tame, as has been shown at Paz de las Aves near Mindo, Ecuador, with the dark-backed wood quail. Wood quail are 22–30 cm long, dumpy, short-tailed, stout-billed partridge-like birds with a bushy crest. The upper parts are dark brown, and the under parts are black, grey, brown, or rufous. Some species have a striking black and white throat or facial markings. The sexes are similar, but in some species, the female has a duller-coloured crest, and in others the under parts are more rufous or grey than in the male. The advertising calls are loud and distinctive duets consisting of repeated phrases, and are often the only indication that wood quail are present. For most wood quail, information has mainly come from specimens, and breeding behaviour and habits are little known. The majority of species, including the relatively widespread spotted wood quail have never had their nests described. Those species for which the feeding habits are known forage on the ground, scratching at the soil for seeds, fallen fruit, and insects. Wood quail are typically shy and wary; they normally make good their escape on foot, but if startled, explode into a short, fast flight into dense cover. All wood quail species have been adversely affected by hunting and, in particular, rampant deforestation. Several species with restricted ranges are now considered threatened. ==Species== * Marbled wood quail, ''Odontophorus gujanensis'' * Spot-winged wood quail, ''O. capueira'' * Black-eared wood quail, ''O. melanotis'' * Rufous-fronted wood quail, ''O. erythrops'' * Black-fronted wood quail, ''O. atrifrons'' * Chestnut wood quail, ''O. hyperythrus'' * Dark-backed wood quail, ''O. melanonotus'' * Rufous-breasted wood quail, ''O. speciosus'' * Tacarcuna wood quail, ''O. dialeucos'' * Gorgeted wood quail, ''O. strophium'' * Venezuelan wood quail, ''O. columbianus'' * Black-breasted wood quail, ''O. leucolaemus'' * Stripe-faced wood quail, ''O. balliviani'' * Starred wood quail, ''O. stellatus'' * Spotted wood quail, ''O. guttatus'' 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「Wood quail」の詳細全文を読む スポンサード リンク
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