Buff-breasted Wren (Thryothorus leucotis) Science Article 3 abstract Although offspring delay dispersal past the age of independence in many Thryothorus species,cooperative breeding has not been recorded in this genus. Here, I present the first observation of cooperativebreeding in a Thryothorus wren (Buff-breasted Wren, T. leucotis). Of 41 offspring that delayed dispersal pastthe age of independence, […]
Tag: Thryothorus leucotis
THE NESTING OF SOME VENEZUELAN BIRDS
Buff-breasted Wren (Thryothorus leucotis) Science Article 4 abstract I passed the interval from 15 March to 24 July 1966 at ‘La Araguata,’ a large cattle farmsituated among the hills near Pirapira, some 20 miles south of Valencia in the state ofCarabobo, Venezuela. Although most of my time was devoted to the study of the RufousfrontedThornbird […]
Timing and duration of egg laying in duettingBuff-breasted Wrens
Buff-breasted Wren (Thryothorus leucotis) Science Article 1 abstract Using direct observations of Buff-breasted Wrens (Thryothorus leucotis), I examined timing andduration of egg laying, the behavior of females and males around the time of laying, and duetting and solo singingon laying and non-laying mornings. When laying, females roosted either alone in breeding nests or with their […]
Context matters: female aggression andtestosterone in a year-round territorialneotropical songbird (Thryothorus leucotis)
Buff-breasted Wren (Thryothorus leucotis) Science Article 2 abstract Testosterone promotes aggressive behaviour in male vertebrates during the breeding season, but theimportance of testosterone in female aggression remains unclear. Testosterone has both beneficial anddetrimental effects on behaviour and physiology, prompting the hypothesis that selection favours anassociation between aggression and testosterone only in certain contexts in which […]
Buff breasted Wren (Thryothorus leucotis)
[order] Passeriformes | [family] Troglodytidae | [latin] Thryothorus leucotis | [UK] Buff-breasted Wren | [FR] Troglodyte a face pale | [DE] Weissohr-Zaunkonig | [ES] Ratona de Dorso Leonado | [IT] Scricciolo guancebianche | [NL] Witoor-winterkoning Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Cantorchilus leucotis LA Panama through Amazonia Cantorchilus leucotis […]