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Article

Testosterone, plumage colouration and extra-pair paternity in male North-American barn swallows.

PloS one - 1 Jan 2011

Eikenaar Cas, Whitham Megan, Komdeur Jan, van der Velde Marco, Moore Ignacio T

Abstract excerpt

In most monogamous bird species, circulating testosterone concentration in males is elevated around the social female's fertile period. Variation in elevated testosterone concentrations among males may have a considerable impact on fitness. For example, testosterone implants enhance behaviours important for social and extra-pair mate choice. However, little is known about the relationship between natural male...

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Identifiers

PMID: 21853105
DOI: 10.1371/journal.pone.0023288
PMCID: PMC3154291

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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