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Male
Location: San Diego River Flood Control Channel, San Diego, CA
Date: 2003-03-08
Lens: Canon 400mm F5.6 + 1.4x II Converter

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Gadwall Anas strepera


Description

The Gadwall is a dabbling duck that feeds primarily on aquatic vegetation.



Appearance

General: 18-21 inches in length.

Male Alternate: Gray-brown body. Paler, sandy-brown head and neck. Black rump, upper and undertail coverts. Black bill. White belly. White speculum. Orange legs and feet. Plumage worn from fall through early summer.

Male Basic: Similar to adult female.

Female: Mottled gray-brown and white body. Gray bill with orange edges. White belly. White speculum.

Juveniles: Similar to adult female.



Habitat

Lakes, marshes, ponds, and rivers.



Nesting

9-11 cream-white eggs. The eggs have a 24-27 day incubation period. Fledging occurs in 48-56+ days. The nest is made from grass and lined with down.






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