It is virtually impossible to make reliable estimates of the sizes of shear-water colonies. This paper shows that an indication of the size of the Mediterranean population of Cory’ s Shearwater could best be obtained by counting migrants passing through the Straits of Gibraltar. © 1980 Taylor & Francis Group, LLC.
CITATION STYLE
Tellería, J. L. (1980). Autumn migration of Cory’ s shearwater through the straits of Gibraltar. Bird Study, 27(1), 21–26. https://doi.org/10.1080/00063658009476652
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