UNUSUAL NEST AND NESTLING APPROPRIATION BY THE EARED DOVE (ZENAIDA AURICULATA)

Abstract ∙ We report a case of interspecific nest appropriation by the Eared Dove (Zenaida auriculata) on a nest of the Creamy‐bellied Thrush (Turdus amaurochalinus). The usurpation attempt resulted in the death of both nestlings, including a parasitic cowbird, despite forceful attempts by the thrus...

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Bibliographic Details
Main Authors: Segura, Luciano N., Gonzalez, Exequiel, Jauregui, Adrián
Format: Article in Journal/Newspaper
Language:English
Published: Neotropical Ornithological Society 2016
Subjects:
Creamy‐bellied Thrush
Eared Dove
Kidnapping behavior
Nest piracy
Nest usurpation
Turdus amaurochalinus
Zenaida auriculata
Emperor penguins
Online Access:https://journals.sfu.ca/ornneo/index.php/ornneo/article/view/151
https://doi.org/10.58843/ornneo.v27i0.151
Description
Summary:Abstract ∙ We report a case of interspecific nest appropriation by the Eared Dove (Zenaida auriculata) on a nest of the Creamy‐bellied Thrush (Turdus amaurochalinus). The usurpation attempt resulted in the death of both nestlings, including a parasitic cowbird, despite forceful attempts by the thrushes to retake their nest and repeated attempts by the dove to feed the nestlings. We believe that the loss of the dove offspring from a nest in a neighboring tree could have triggered this behavior, which may be a hormonal byproduct caused by the recent loss of their own offspring, similar to what has been observed in Emperor Penguins (Aptenodytes fosteri).Resumen ∙ Inusual apropiación de nido y pichones por parte de la Paloma Torcaza (Zenaida auriculata) Reportamos un caso de apropiación interespecífica de nido en donde una Torcaza (Zenaida auriculata) usurpa el nido de un Zorzal Chalchalero (Turdus amaurochalinus). Ambos pichones, incluido un pichón parásito de cría, resultaron muertos tras la usurpación, a pesar de los enérgicos esfuerzos de los zorzales por recuperar el nido y de los repetidos intentos de la paloma para alimentar los pichones. Creemos que la Torcaza perdió sus propios pichones cerca del nido de zorzal y esto motivó la usurpación. Atribuimos el falso reconocimiento de los pichones a un subproducto hormonal causado por la pérdida de sus propios pichones, similar a lo observado en el Pingüino Emperador (Aptenodytes fosteri).

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