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Owl Nut: comparison upper back hoary and common
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Owl Nut: hoary redpoll undertail coverts
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Owl Nut: hoary redpoll undertail coverts 2
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Owl Nut: hoary redpoll 34
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Owl Nut: hoary redpoll 33
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Owl Nut: hoary redpoll 32
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Owl Nut: hoary redpoll 31
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Owl Nut: hoary redpoll 30