Mallard, Anas platyrhynchos
Mallard, male, 10/20/07, Radio Road, Redwood Shores, San Mateo Co
Mallard, female, 10/8/05, Shoreline Park, Mountain View
Mallards, pair, 2/12/05, Shoreline Park, Mountain View
Mallard, female, 5/16/08, Galileo Hill, Kern Co
Mallards, pair, 2/24/09, Shoreline Park, Mountain View
Mallards, chicks, 5/17/08, Galileo Hill, Kern Co
Mallards, female with chicks, 5/17/08, Galileo Hill, Kern Co
Mallard, female,  9/4/04, Palo Alto Baylands
Mallard, male in eclipse, 7/21/06, Palo Alto Baylands
The yellow bill marks the bird left as a male mostly in eclipse plumage, with a little green on the head indicating molt.
Mallard, domestic male, 12/26/08, Radio Road, Redwood Shores, San Mateo Co
This is a domestic bird seen with wild Mallards, showing a combination of two familiar forms illustrated on Sibley's "Domestic Waterfowl" page -- standard wild male plumage; and white-breasted, with brown head and body. Domestic Mallards are found in a very wide variety of plumages, including all-white.
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