Riverside wren
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The riverside wren (Cantorchilus semibadius) is a species of bird in the family Troglodytidae. It is found in Costa Rica and Panama.[1]
Taxonomy and systematics
The riverside wren has sometimes been treated as conspecific with bay wren (Cantorchilus nigricapillus) but their plumages are quite different as are DNA analyses. The species is monotypic.[2]
Description
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The riverside wren is Script error: No such module "convert". long and weighs Script error: No such module "convert".. The adults have a bright orange-brown crown; chestnut nape, back, and rump; and a blackish tail with buff-white bars. They have a black-over-white supercilium and the rest of the face is streaked and spotted black and white. From throat to vent their underparts are pale gray with narrow black bars; the gray becomes somewhat buffy to the rear. Juveniles are duller overall, have fine black scaling on the crown, and the underparts' black bars are not as crisp.[2]
Distribution and habitat
The riverside wren is found along the Pacific slope from Costa Rica's Gulf of Nicoya into western Panama. It inhabits dense vegetation, preferably along watercourses, swampy edges of woodlands, or on steep precipices. In elevation it ranges from sea level to Script error: No such module "convert"..[2]
Behavior
Feeding
The riverside wren forages near the ground, usually in pairs or family groups. It sometimes briefly joins other species at army ant swarms. Its diet includes insects and other invertebrates.[2]
Breeding
The riverside wren appears to nest at almost any time of the year. Its nest is globular made of fine fibers; it drapes over a branch to form two chambers with an entrance hole in the outer one. It is often placed over flowing water, Script error: No such module "convert". above it or the ground. The species also constructs "dormitory" nests for roosting. The clutch size is two.[2]
Vocalization
Template:Birdsong Both sexes of riverside wren sing, repeated "loud ringing phrases" and followed by different phrases, also repeated. Their calls include "harsh churr and various clear tinkling notes".[2]
Status
The IUCN has assessed the riverside wren as being of Least Concern. However, its "population trend is difficult to determine because of uncertainty over the impacts of habitat modification on population sizes."[3]
References
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- ↑ a b c d e f Kroodsma, D. E. and D. Brewer (2020). Riverside Wren (Cantorchilus semibadius), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.rivwre1.01 retrieved June 7, 2021
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Further reading
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