| Citation | Wilkens, S. and K.-M. Exo, 1998 Population size and density dependant effects on breeding success in Herring gulls (Larus argentatus) on Mellum Island. Journal for Ornithology 139:21-36. |
| Ref. | 101503 Wilkens, S. and K.-M. Exo, 1998 |
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| Named Used as Valid | Larus argentatus |
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