The first case of hybridization between Lesser Black-backed Gull Larus fuscus and Yellow-legged Gull L. michahellis and next mixed broods of Lesser Black-backed Gull and Caspian Gull L. cachinnans

Grzegorz Orłowski, Paweł Kołodziejczyk

Ornis Polonica 2014, 55: 69–72

https://doi.org/10.12657/ornis.2014.1.4

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