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Birds of Indian Subcontinent
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Fringillidae
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1987
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Literature
Authors
Year
Title
James, PC
,
Barry, TW
,
Smith, AR
,
Barry, SJ
1987
Bill Crossover Ratios in Canadian Crossbills Loxia spp.
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts,
Simon Rycroft
,
Ben Scott
,
Vince Smith