Order
Passeriformes
Family
Vireonidae
Genus
Vireo
 
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Version 1.0

This is a historic version of this account.  Current version

SPECIES

Brown-capped Vireo Vireo leucophrys

Claudia I. Rodríguez-Flores, Carlos A. Soberanes-González, Marîa del Coro Arizmendi, and Thomas S. Schulenberg
Version: 1.0 — Published March 22, 2013

Breeding

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Introduction

There is surprisingly little information on the breeding biology of this common, widespread species. Only two nests of Brown-capped Vireo have been reported, both from northwestern Ecuador, in May and July (Gelis and García 2009). These nests were typical for the genus: a cup suspended by its rim in the fork of slender branches. Both nests were 8 m above the ground. One nest examined in detail was constructed primarily of strands of green moss, but also incorporated a spider egg sac and six long black strands of human hair. The outer materials of the nest were held together with spider silk. The inner cup of the nest contained long (15-25 cm) strips of brown dead plant fibers, with a few strands of lichen loosely woven between the inner cup and the outer layers of the nest. Nest dimensions are 7.6-7.8 cm x 5.8-7.7 cm (outer diameter x height), and 4.3-4.4 cm x 3.6-4.6 cm (inner diameter x depth).

Elsewhere specimens reported to be in breeding condition have been taken March-May (Oaxaca, Mexico; Binford 1989), and in March and July (Colombia; Miller 1963); Brown-capped Vireo is suspected to breed from March-July in Costa Rica (Stiles and Skutch 1989).

The contents of only one nest have been observed: one of the nests in Ecuador contained two nestlings, which were provisioned by two adults (Gelis and García 2009). The eggs have not been described, and there is no information on incubation or on development of the nestlings.

Recommended Citation

Rodríguez-Flores, C. I., C. A. Soberanes-González, M. d. C. Arizmendi, and T. S. Schulenberg (2013). Brown-capped Vireo (Vireo leucophrys), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.brcvir1.01