Brood parasitism of White-rumped Swallows by Shiny Cowbirds

Swallows and martins are infrequent hosts of the generalist brood parasite Shiny Cowbird (Molothrus bonariensis). We monitored 50 nesting attempts by White-rumped Swallows (Tachycineta leucorrhoa) over a two-year period in Argentina and detected low rates of brood parasitism (three nests, or 6%). Of...

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Detalles Bibliográficos
Autores principales:	Massoni, Viviana, Reboreda, Juan Carlos
Publicado:	2006
Materias:	Brood parasitism Molothrus bonariensis Shiny Cowbird Tachycineta leucorrhoa White-rumped Swallow Aves Hirundinidae Molothrus
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02738570_v77_n1_p80_Massoni http://hdl.handle.net/20.500.12110/paper_02738570_v77_n1_p80_Massoni
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_02738570_v77_n1_p80_Massoni
record_format	dspace
spelling	paper:paper_02738570_v77_n1_p80_Massoni2023-06-08T15:25:48Z Brood parasitism of White-rumped Swallows by Shiny Cowbirds Massoni, Viviana Reboreda, Juan Carlos Brood parasitism Molothrus bonariensis Shiny Cowbird Tachycineta leucorrhoa White-rumped Swallow Aves Hirundinidae Molothrus Molothrus bonariensis Tachycineta leucorrhoa Swallows and martins are infrequent hosts of the generalist brood parasite Shiny Cowbird (Molothrus bonariensis). We monitored 50 nesting attempts by White-rumped Swallows (Tachycineta leucorrhoa) over a two-year period in Argentina and detected low rates of brood parasitism (three nests, or 6%). Of the three nests parasitized, cowbirds (N= 1 per nest) successfully fledged from two. Eight of 13 swallow eggs in these three nests were punctured by cowbirds, and all but one swallow nesting starved at the two parasitized nests. At least two factors may contribute to the low frequency of parasitism of White-rumped Swallows by Shiny Cowbirds, including the inability of the larger cowbirds to enter some nest cavities and the aggressive nest defense behavior of adult swallows. ©2006 Association of Field Ornithologists. Fil:Massoni, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Reboreda, J.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02738570_v77_n1_p80_Massoni http://hdl.handle.net/20.500.12110/paper_02738570_v77_n1_p80_Massoni
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Brood parasitism Molothrus bonariensis Shiny Cowbird Tachycineta leucorrhoa White-rumped Swallow Aves Hirundinidae Molothrus Molothrus bonariensis Tachycineta leucorrhoa
spellingShingle	Brood parasitism Molothrus bonariensis Shiny Cowbird Tachycineta leucorrhoa White-rumped Swallow Aves Hirundinidae Molothrus Molothrus bonariensis Tachycineta leucorrhoa Massoni, Viviana Reboreda, Juan Carlos Brood parasitism of White-rumped Swallows by Shiny Cowbirds
topic_facet	Brood parasitism Molothrus bonariensis Shiny Cowbird Tachycineta leucorrhoa White-rumped Swallow Aves Hirundinidae Molothrus Molothrus bonariensis Tachycineta leucorrhoa
description	Swallows and martins are infrequent hosts of the generalist brood parasite Shiny Cowbird (Molothrus bonariensis). We monitored 50 nesting attempts by White-rumped Swallows (Tachycineta leucorrhoa) over a two-year period in Argentina and detected low rates of brood parasitism (three nests, or 6%). Of the three nests parasitized, cowbirds (N= 1 per nest) successfully fledged from two. Eight of 13 swallow eggs in these three nests were punctured by cowbirds, and all but one swallow nesting starved at the two parasitized nests. At least two factors may contribute to the low frequency of parasitism of White-rumped Swallows by Shiny Cowbirds, including the inability of the larger cowbirds to enter some nest cavities and the aggressive nest defense behavior of adult swallows. ©2006 Association of Field Ornithologists.
author	Massoni, Viviana Reboreda, Juan Carlos
author_facet	Massoni, Viviana Reboreda, Juan Carlos
author_sort	Massoni, Viviana
title	Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_short	Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_full	Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_fullStr	Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_full_unstemmed	Brood parasitism of White-rumped Swallows by Shiny Cowbirds
title_sort	brood parasitism of white-rumped swallows by shiny cowbirds
publishDate	2006
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02738570_v77_n1_p80_Massoni http://hdl.handle.net/20.500.12110/paper_02738570_v77_n1_p80_Massoni
work_keys_str_mv	AT massoniviviana broodparasitismofwhiterumpedswallowsbyshinycowbirds AT reboredajuancarlos broodparasitismofwhiterumpedswallowsbyshinycowbirds
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Brood parasitism of White-rumped Swallows by Shiny Cowbirds

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