Common migrant and winter visitor from September to May. Found in tidewater areas, ponds, and lakes. The white crown margined with green distinguishes the male from the brown-headed female.
This information is for the bird on the left.
Date: Before 1858
Collected By: JK Townsend
Locality: Potomac River
Catalog ID: 12768
This information is for the bird on the right.
Collected By: Dr Carl DeW Brownell, USN
Locality: Las Animas, CO
Catalog ID: 221832