Blue-winged Teal x Green-winged Teal hybrid, Jasper Road and US287, Boulder County (Colorado, USA), 20th April 2014 - copyright Christian Nunes
(photo ID: 2350)
When they show closely these can be really attractive hybrids! See this link for a shockingly beautiful example.
Blue-winged Teal Anas discors
Northern Shoveler Anas clypeata
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