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 […]
Category: Troglodytidae
FIRST RECORD OF COOPERATIVE BREEDING IN ATHRYOTHORUS WREN
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, […]
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 […]
Coraya Wren (Thryothorus coraya)
[order] PASSERIFORMES | [family] Troglodytidae | [latin] Thryothorus coraya | [UK] Coraya Wren | [FR] Troglodyte coraya | [DE] Coraya-Zaunkonig | [ES] Ratona de las Lluvias | [NL] Coraya-winterkoning Subspecies Monotypic species Genus Physical charateristics It is a medium sized wren, rufous-(chestnut)-brown overall with a medium length black-and-white banded tail. It has a buff white […]
Musician Wren (Cyphorhinus arada)
[order] PASSERIFORMES | [family] Troglodytidae | [latin] Cyphorhinus arada | [UK] Musician Wren | [FR] Troglodyte musicien | [DE] Orpheus-Zaunkonig | [ES] Soterrey canoro | [NL] Orpheuswinterkoning Subspecies Monotypic species Genus Physical charateristics Forehead rufous, crown and nape chestnut. Buff faint eyestripe, black collar with white stripes extending to back. Back, wings and tail reddish […]
Sedge Wren (Cistothorus platensis)
[order] PASSERIFORMES | [family] Troglodytidae | [latin] Cistothorus platensis | [UK] Sedge Wren | [FR] Troglodyte des laiches | [DE] Seggen-Zaunkonig | [ES] Chivirin sabanero | [NL] Zegge-winterkoning Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Cistothorus platensis NA, LA widespread Cistothorus platensis aequatorialis Cistothorus platensis alticola Cistothorus platensis elegans Cistothorus […]
Sumichrasts Wren (Hylorchilus sumichrasti)
[order] PASSERIFORMES | [family] Troglodytidae | [latin] Hylorchilus sumichrasti | [UK] Sumichrasts Wren | [FR] Troglodyte a bec mince | [DE] Schmalschnabel-Zaunkonig | [ES] Chivirin de Sumichrast | [NL] Dunsnavelwinterkoning Subspecies Monotypic species Physical charateristics Sumichrast?s Wren is sexually monomorphic in plumage. Eyes blackish. Bill slender, fairly long; blackish above, orange-yellow below at least basally. […]
White-breasted Wood-Wren (Henicorhina leucosticta)
[order] PASSERIFORMES | [family] Troglodytidae | [latin] Henicorhina leucosticta | [UK] White-breasted Wood-Wren | [FR] Troglodyte a poitrine blanche | [DE] Wald-Zaunkonig | [ES] Ratona Gallineta | [NL] Boswinterkoning Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Physical charateristics The adult White-breasted Wood-Wren is 10 cm long and weighs 16 g. […]
Bewicks Wren (Thryomanes bewickii)
[order] PASSERIFORMES | [family] Troglodytidae | [latin] Thryomanes bewickii | [UK] Bewicks Wren | [FR] Troglodyte de Bewick | [DE] Busch-Zaunkonig | [ES] Chivirin cola obscura | [NL] Bewicks Winterkoning Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Thryomanes bewickii NA widespread, also Mexico Ferminia bewickii Thryomanes bewickii altus Thryomanes bewickii […]
Cactus Wren (Campylorhynchus brunneicapillus)
[order] PASSERIFORMES | [family] Troglodytidae | [latin] Campylorhynchus brunneicapillus | [UK] Cactus Wren | [FR] Troglodyte des cactus | [DE] Kaktus-Zaunkonig | [ES] Matraca del desierto | [NL] Cactuswinterkoning Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Campylorhynchus brunneicapillus NA, MA sw USA, Mexico Campylorhynchus brunneicapillus affinis Campylorhynchus brunneicapillus anthonyi Campylorhynchus […]