Sunday, March 11, 2012

Costa's Hummingbird (Calypte costae)

Kicau Nusantara Costa's Hummingbird (Calypte costae)
Physical Description Costa's Hummingbird (Calypte costae)
Average weight: male 3.05 g, female 3.22 g. Female birds are larger than males.

Plumage Calypte Costae
Adult male: Metallic green back, violet-purple crown and gorget with very long side throat feathers, green breast.
Adult female: Green back and crown, white breast, white throat with some black spots, buff sides, white tips on outer tail feathers.
Distribution Costa's Hummingbird
Observed in Alaska, Arizona, California, Kansas, Nevada, New Mexico, Oregon, Texas, Utah, and British Columbia. Winters in SE California, SW Arizona, NW Sonora, and Baja. Costa's don't migrate very long distances, and can be among the first migrant birds to arrive in the spring.
For maps showing population distribution and trends, see the National Biological Service's North American Breeding Bird Survey species account.
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