This bird simply had none of the rufous overtones of the other female Red-winged Blackbirds. Is it lacking pigment? I have zilch experience with young and female type Trikes. Too bad these pics are not more focused showing the bill. Sibley mentions separating them by wing shape, but I am not sure what he is talking about. Of the flock of about 100 red-wings, this was the only one without rufous for the females.
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