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1Subjects: “...Rough-legged Hawk (Buteo lagopus)--American Crow (Corvus brachyrhynchos)--Snow Bunting...”
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2Subjects: “...Red-tailed Hawk (Buteo jamaicensis)--American Crow (Corvus brachyrhynchos)--Common Grackle...”
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3Subjects: “...Northern Harrier (Circus hudsonius)--Red-tailed Hawk (Buteo jamaicensis)--American Crow (Corvus...”
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4Subjects: “...Red-headed Woodpecker (Melanerpes erythrocephalus)--American Crow (Corvus brachyrhynchos)--Greater...”
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5Subjects: “...Killdeer (Charadrius vociferus)--Red-tailed Hawk (Buteo jamaicensis)--American Crow (Corvus...”
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6by Ames Audubon SocietySubjects: “...American Crow (Corvus brachyrhynchos)...”
Published 1977
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