Long-eared Owl Asio Otus Breeding in a Caspian Gull Larus Cachinnans Colony: Reversed Roles in Protective Nesting Association?
Ornis Svecica(2020)
摘要
We describe the event of Long-eared Owls Asio otus nesting on an island within a colony of Caspian Gulls Larus cachinnans at the Mietków Reservoir (SW Poland). The owls nested in an old (possible corvid) nest in a willow and raised two owlets. They probably did not hunt gulls, neither adults nor chicks. We suggest that, in this case, the Long-eared Owls benefitted from breeding within a gull colony because of the added security against predators that the gulls provided.
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