<abstract xmlns="http://www.w3.org/1999/xhtml"><p>At Mietków Reservoir (SW Poland), during the breeding season of 2019, we found 52 dead swallows in Caspian Gull <italic>(Larus cachinnans)</italic> colony. Most of them were Barn Swallows <italic>(Hirundo rustica)</italic>. The bodies of swallows were fresh and torn with traces of bill. We assume that swallows might have been in weak condition and hunted by gulls. They also could die because of bad weather conditions and hypothermia, fell into the water and then were taken. However, to our knowledge, it was the first mass event of feeding on migrating birds by Caspian Gull.</p></abstract>

At Mietków Reservoir (SW Poland), during the breeding season of 2019, we found 52 dead swallows in Caspian Gull (Larus cachinnans) colony. Most of them were Barn Swallows (Hirundo rustica). The bodies of swallows were fresh and torn with traces of bill. We assume that swallows might have been in weak condition and hunted by gulls. They also could die because of bad weather conditions and hypothermia, fell into the water and then were taken. However, to our knowledge, it was the first mass event of feeding on migrating birds by Caspian Gull.

Short report on probable case of Caspian Gull predation on migrating swallows observed at first time

Ornis Hungarica

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At Mietków Reservoir (SW Poland), during the breeding season of 2019, we found 52 dead swallows in Caspian Gull (Larus cachinnans) colony. Most of them were...

Short report on probable case of Caspian Gull predation on migrating swallows observed at first time

Published Online: Jul 09, 2020

Page range: 181 - 184

Received: Dec 14, 2019

Accepted: Feb 11, 2020

DOI: https://doi.org/10.2478/orhu-2020-0012

Keywords
passerine, feeding on birds, predator

© 2020 Klaudia Litwiniak et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Short report on probable case of Caspian Gull predation on migrating swallows observed at first time

Published Online: Jul 09, 2020

Page range: 181 - 184

Received: Dec 14, 2019

Accepted: Feb 11, 2020

DOI: https://doi.org/10.2478/orhu-2020-0012

Keywordspasserine, feeding on birds, predator

© 2020 Klaudia Litwiniak et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
passerine, feeding on birds, predator