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Rufous-vented ground cuckoo
The rufous-vented ground cuckoo (''Neomorphus geoffroyi'') is a large terrestrial species of cuckoo in the family Cuculidae. It is found in humid primary forests from southern Nicaragua, through Costa Rica and Panama, into north-western Colombia. Another population occurs in the western and southern Amazon Basin of south-eastern Colombia, eastern Ecuador, eastern Peru, northern Bolivia and Brazil, while a final population occurs in the Atlantic Forest of eastern Brazil. Much confusion exists over the exact limits of its distribution in the south-central Amazon, where the very similar scaled ground cuckoo occurs (the breast-markings typically used to separate the scaled and the rufous-vented ground cuckoos are known to vary clinally). Consequently, the scaled ground cuckoo has often been considered a subspecies of the rufous-vented ground cuckoo.〔
==Description==
The rufous-vented ground cuckoo is a large ground-dwelling bird with sturdy legs and a long tail. It has a brown head, greenish-brown crest and curved beak. The upper parts and tail are dark with a greenish, bluish or purplish iridiscence, and the underparts are whitish to pale tan. The subspecies vary primarily in the details of the chest—and crown—pattern, and the colour of the tail and wings.〔 There is extensive variation in the dark chest band, which hinders easy separation from the scaled ground cuckoo. Consequently, the latter is commonly regarded as a subspecies of the former.〔〔
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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