First wintering records of the Whiskered Tern Chlidonias hybrida in Poland on the background of autumn observations of the species

Tomasz Tumiel, Grzegorz Grygoruk, Arkadiusz Sikora

Ornis Polonica 2020, 61: 62–67

https://doi.org/10.12657/ornis.2020.1.5

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