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Link to original content: https://pubmed.ncbi.nlm.nih.gov/17753777
Laying Eggs in a Neighbor's Nest: Benefit and Cost of Colonial Nesting in Swallows - PubMed Skip to main page content
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. 1984 May 4;224(4648):518-9.
doi: 10.1126/science.224.4648.518.

Laying Eggs in a Neighbor's Nest: Benefit and Cost of Colonial Nesting in Swallows

C R Brown

Laying Eggs in a Neighbor's Nest: Benefit and Cost of Colonial Nesting in Swallows

C R Brown. Science. .

Abstract

Intraspecific brood parasitism (laying eggs in another's nest) occurs widely in colonial cliff swallows (Passeriformes: Hirundinidae: Hirundo pyrrhonota). In colonies consisting of more than ten nests, up to 24 percent of the nests were sometimes parasitized by colony members. Laying eggs in a conspecific's nest may be a benefit of coloniality for parasitic individuals and simultaneously may represent a cost to host individuals within the same colony.

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