Image: Anas Rubripes and Anas Platyrhynchos August 2008

Description: An American Black Duck (Anas rubripes top left) and a male Mallard (Anas platyrhynchos bottom right in eclipse plumage).
Title: Anas Rubripes and Anas Platyrhynchos August 2008
Credit: Own work
Author: Jean-Philippe Boulet
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