| Referens | Risch, T.S. and F.C. Rohwer, 2000 Effects of parental quality and egg size on growth and survival of herring gull chicks. Can. J. Zool. 78:967-973. |
| Ref. | 92217 Risch, T.S. and F.C. Rohwer, 2000 |
| Sida | |
| Namngiven Används som giltig | Larus argentatus |
| Observationsplats | |
| Utbredning | USA. |