XXVII.—Remarks on the Greenland and Iceland falcons, showing that they are distinct species
Hancock, John
Article
1838
Annals of natural history
2
241--250
BioStor
London, R. and J.E. Taylor,
BioStor: https://biostor.org/reference/94002 DOI: https://doi.org/10.1080/00222933809496669
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