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Birds collected by the Childs Frick Expedition to Ethiopia and Kenya Colony. Part 1. Non-passeres; Part 2. Passeres
Author: Friedmann, Herbert
Year: 1930-1937
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The honey-guides
Author: Friedmann, Herbert
Year: 1955
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The parasitic weaverbirds
Author: Friedmann, Herbert
Year: 1960
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Host relations of the parasitic cowbirds
Author: Friedmann, Herbert
Year: 1963
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The evolutionary history of the avian genus Chrysococcyx
Author: Friedmann, Herbert
Year: 1968
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The birds of north and middle America : a descriptive catalog
Author: Ridgway, Robert; Friedmann, Herbert
Year: 1941
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The birds of north and middle America : a descriptive catalog
Author: Ridgway, Robert; Friedmann, Herbert
Year: 1946
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The birds of north and middle America : a descriptive catalog
Author: Ridgway, Robert; Friedmann, Herbert
Year: 1950
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The green-winged teal of the Aleutian Islands
Author: Friedmann, Herbert
Call no: RP645
Year: 1948
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The forms of the black hawk-eagle
Author: Friedmann, Herbert
Call no: RP646
Year: 1950
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