Furrer, R. K. (1974). Nest site stereotypy and optimal breeding strategy in a population of Brewer's blackbirds <Euphagus cyanocephalus>.
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Chicago-čujuhus (17. p.)
Furrer, Robert Karl. Nest Site Stereotypy and Optimal Breeding Strategy in a Population of Brewer's Blackbirds <Euphagus Cyanocephalus>. Zürich, 1974.
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MLA-čujuhus (9. p.)
Furrer, Robert Karl. Nest Site Stereotypy and Optimal Breeding Strategy in a Population of Brewer's Blackbirds <Euphagus Cyanocephalus>. 1974.
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