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The distribution and conservation status of the Bearded Tachuri Polystictus pectoralis

Published online by Cambridge University Press:  11 May 2010

N. J. Collar  and
D. C. Wege
N. J. Collar
Affiliation:
BirdLife International, Wellbrook Court, Girton Road, Cambridge CB3 0NA, U.K.
D. C. Wege
Affiliation:
BirdLife International, Wellbrook Court, Girton Road, Cambridge CB3 0NA, U.K.
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Summary

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The Bearded Tachuri Polystictus pectoralis occupies lowland grasslands with scrubby vegetation, generally near water, in the Andean grasslands of Colombia at two sites (threatened race bogotensis), savannas in eastern Colombia and the lowland and tepui grasslands of mainly southern Venezuela, Guyana, Surinam, French Guiana and northern Brazil (race brevipennis), reappearing south of the Amazon in central-southern Brazil, eastern Bolivia (no recent records), Paraguay, Uruguay and northern and central-eastern Argentina (nominate pectoralis). It is an austral summer visitor (October/November to February/April) to central-east Argentina, nesting (commonly in thistles) around December, clutch-size three. It feeds on insects by perch-gleaning, sallying, hover-gleaning and still-hunting. It is unobtrusive and must be commonly overlooked, and in some localities may be moderately well represented. Overall, however, it is scarce and appears to be very patchy in occurrence; grassland habitats within its range have been converted wholesale to farming. New quantitative criteria support earlier qualitative judgement that the species is probably not (yet) threatened, but that it merits near-threatened status. Suggestions that one or all of its three subspecies may be good species are premature; it is not even clear how distinct these forms are as subspecies.

Type
Research Article
Information
Bird Conservation International , Volume 5 , Issue 2-3: In memory of Ted Parker , September 1995 , pp. 367 - 390
Copyright
Copyright © Birdlife International 1995

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