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Anas discors  Blue-winged Teal
The atlasers found few of these ground-nesting granivores in the Coastal Marsh Region and even fewer in northern Louisiana.

male and female (inset lower)Copyright 1999 by Michael Seymour 
male (upper) Copyright 1999 by Brian Miller 

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Aix sponsa  Wood Duck
These urban-tolerant and cavity-nesting granivores nest in swamps and other wooded bottomlands throughout the state. Their ducklings feed on aquatic insects and other invertebrates. The few Atlas records near the coast and in Winn, Jackson, and Bienville parishes in northern Louisiana reflect the scarcity of wooded bottomland habitats in those areas.

photos Copyright 1999 by Bill Bergen 
female (lower) and male (upper)

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Lophodytes cucullatus  Hooded Merganser
Most Atlas records of these cavity-nesting crustacean predators and piscivores are of birds using Wood Duck nest boxes. The Hooded Merganser appears to favor large swamps having tall trees and relatively deep water.

photos Copyright 1999 by Brian Miller 
males (upper) and females (lower)crests flat (left insets) and raised (right)