We spotted this lesser scaup, a North American diving duck, in Houston’s Hermann Park. These ducks feed by sifting mud at the bottom of the lake.
This would be a male; the female has a brownish body – quite different.
See comments re identification.
These black bellied whistling ducks were hanging out on the lake at Houston’s Hermann Park last March.
In the photos you can easily pick out the characteristic white eye ring, brown top knot, and black belly and tail.
These birds are resident all year, and often make themselves known with a chorus of whistles.