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Distances between birth place and breeding place in sparrowhawks and other european raptors
Vol 13, Iss 4, Page 97, Date 1979
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Decomposition of raptor pellets
Vol 13, Iss 4, Page 102, Date 1979
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Observations on the behavior of wintering bald eagles
Vol 13, Iss 4, Page 112, Date 1979
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Use of hunting methods by ferruginous hawks in relation to vegetation density
Vol 13, Iss 4, Page 116, Date 1979
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Cooper's hawk attacks sharp-tailed grouse
Vol 13, Iss 4, Page 120, Date 1979
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Red-tailed hawk preys on adult sage grouse in northern Utah
Vol 13, Iss 4, Page 123, Date 1979