dcsimg

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Conirostrum bicolor (Vieillot)

Previously (Friedmann, 1963:209) this bird was known to be victimized by the small race of the shiny cowbird (M. bonariensis minimus) on the basis of 1 record from Trinidad and one from Surinam. Recently, ffrench (1973:396–397) listed 3 records from Trinidad, including the one previously mentioned. There had been some uncertainty about the earlier Trinidad record since that particular nest was described as domed, whereas all other nests of this species found are open, cup-like structures. In 2 of ffrench's 3 records, the young cowbirds were reared successfully by their hosts. Still another record from Trinidad comes to us from D. W. Snow, who saw a pair of these honey-creepers feeding a recently fledged young cowbird.

WHITE-STRIPED WARBLER
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bibliographic citation
Friedmann, Herbert, Kiff, Lloyd F., and Rothstein, Stephen I. 1977. "A further contribution of knowledge of the host relations of the parasitic cowbirds." Smithsonian Contributions to Zoology. 1-75. https://doi.org/10.5479/si.00810282.235

Bicolored conebill

provided by wikipedia EN

The bicolored conebill (Conirostrum bicolor) is a small passerine bird. This member of the tanager family is a resident breeder in South America from Colombia, Venezuela and Trinidad south and east to the Guianas, northeast Peru and Brazil.

Habitat

Its habitat is coastal mangrove swamps and neighbouring woodlands. The small feather-lined cup nest is built in a mangrove tree, and the normal clutch is two brown-blotched buff eggs. Nests are often parasitised by shiny cowbirds.

Description

The bicolored conebill is 11.4 cm long and weighs 11 g. The adult is grey-blue above and buff-tinged grey below, with red eyes, pink legs and a sharp, pointed bill. The primary flight feathers are bluish with brown edgings. The sexes are similar, although the female may be a little duller, but immature birds are greenish above and have pale yellow underparts. Birds sometimes breed in immature plumage.

Diet

These warbler-like birds eat mainly insects and occasionally seeds. The bicolored conebill's call is a thin tseep.

References

  1. ^ BirdLife International (2018). "Conirostrum bicolor". IUCN Red List of Threatened Species. 2018: e.T22722089A132011675. doi:10.2305/IUCN.UK.2018-2.RLTS.T22722089A132011675.en. Retrieved 11 November 2021.
  • ffrench, Richard (1991). A Guide to the Birds of Trinidad and Tobago (2nd ed.). Comstock Publishing. ISBN 0-8014-9792-2.
  • Hilty, Steven L (2003). Birds of Venezuela. London: Christopher Helm. ISBN 0-7136-6418-5.
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Bicolored conebill: Brief Summary

provided by wikipedia EN

The bicolored conebill (Conirostrum bicolor) is a small passerine bird. This member of the tanager family is a resident breeder in South America from Colombia, Venezuela and Trinidad south and east to the Guianas, northeast Peru and Brazil.

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Wikipedia authors and editors
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