| Citation | Blokpoel, H. and W.C. Scharf 1991 Status and conservation of seabirds nesting in the Great Lakes of North America. In Croxall, J.P. (ed.), Seabird status and conservation:a supplement. ICBP Technical Publication, Cambridge, Great Britain 11:17-41. |
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| Ref. No. | 6735 |
| Language | English |
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