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Volume 52, No. 1

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Notes on a plover briefly incubating an oystercatcher nest in Patagonia.


Authors

JOSÉ O. VALDEBENITO

Citation

VALDEBENITO, J.O. 2024. Notes on a plover briefly incubating an oystercatcher nest in Patagonia.. Marine Ornithology 52: 113 - 115

Received 25 November 2023, accepted 16 January 2024

Date Published: 2024/04/15
Date Online: 2024/03/31
Key words: Magellanic Oystercatcher, mutualism, nest usurpation, supernormal stimuli, Two-banded Plover, wader

Abstract

A breeding female Two-banded Plover Charadrius falklandicus was observed incubating the eggs of a Magellanic Oystercatcher Haematopus leucopodus while the nest was unattended by the oystercatcher. The behaviour was likely triggered by the plover's nest becoming momentarily inaccessible, and so, being in incubation mode, the bird responded by incubating the nearest nest available. This is the first report of such behaviour while the oystercatcher was nearby, and the plover nest was still active and in sight.

References


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