Mallards cross-breed with domestic white ducks and I think native Black Ducks quite a bit. Some really odd plumage patterns can result. I would not expect cross-breeding with Canvas Backs or Red head Ducks, but let's see what others have to say about that.
----- Original Message -----
From: Hugh Vandervoort
To: Maryland Birding Birding
Sent: Thursday, February 28, 2013 9:23 PM
Subject: [MDBirding] Canvasback-Mallard?
I found this odd looking duck at Quiet Waters Park in Annapolis. Do such hybrids exist, or is it something else?
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