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| small bill, less than half the width of the head, and narrow |
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| females have no red on head |
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| outer tail feathers with black bars on the white (not always visible) |
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| fluff on "nose" fluffier in downy than in hairy |
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| male red spot can be continuous |
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| male red spot can be divided by black |
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| young downies have reddish foreheads, but I'm not sure if this is that or just a male in a weird position |
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