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질의: anas wyvilliana결과: 3번째/4
Koloa ~ Hawaiian Duck Anas wyvilliana
제목: Koloa ~ Hawaiian Duck Anas wyvilliana
출처: http://www.kaelepuluwetland.com/birds/
BCCV9861102704-koloa-crop.jpg
해상도: 300x242 파일크기: 15322 Bytes 등록시간: 2008:02:20 00:29:10

Koloa ~ Hawaiian Duck Anas wyvilliana


Kaelepulu Wetland - Home to Endangered Hawaiian Wetland Birds


Koloa ~ Hawaiian Duck Anas wyvilliana
Koloa are similar to and probably derived from the Mallard. Both sexes
are mottled brown, resembling a small dark female Mallard. Their flight
feathers are green to blue and bordered on both sides by white. Their
feet and legs are orange. The bill is olive green in males and a dull
orange or gray with a dark saddle in females. Males are darker than females
and tend to chestnut coloring below.
Koloa quack like Mallards, but softer and are not as vocal. There are
few pure Koloa on Oahu, most are Mallard-Koloa hybrids. You will probably
see only hybrids at Ka'elepulu Wetland.

anas wyvilliana
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