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  1. nartreb

    Mallard or Black duck - Philadelphia PA 2 Nov 23

    Orange bill with dark saddle, pale belly => can't be American Black Duck. I don't think I can rule out female gadwall from this photo. (The amount of black on the bill can vary, and we don't have a great view of it here.) If you saw the upper side of the wing during flight, a gadwall would...
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