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Studies of Horned Curassow Pauxi unicornis in Bolivia

Published online by Cambridge University Press:  11 May 2010

Guy Cox ,
J. M. Read ,
R. O. S. Clarke  and
V. S. Easty
Guy Cox
Affiliation:
Museum of Natural Science, 119 Foster Hall, Louisiana State University, Baton Rouge, LA 70803, U.S.A.
J. M. Read
Affiliation:
Dept. of Geography and Anthropology, 231 Howe-Russell, Louisiana State University, Baton Rouge, LA 70803, U.S.A.
R. O. S. Clarke
Affiliation:
Casilla 2097, Santa Cruz, Bolivia
V. S. Easty
Affiliation:
101 Leighton Rd, Kentish Town, London, NW5, U.K.
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Observations of the Horned Curassow Pauxi unicomis in Amboro National Park, depto. Santa Cruz, Bolivia, allowed us to assess the status of a species whose habits in the wild were virtually unknown. Vocalizations, including call notes and the deep booming song, are described. Density was estimated by counting booming birds in the breeding season using a three-hide triangulation method. The study showed birds to be aggregated in one part of the study area. A nest of was found and the incubating female was observed for nine days: the individual incubated alone, left the nest at night, and returned at first light.

Observaciones de la Pava Copete de Piedra (Pava Crista Azul) Pauxi unicomis en el Parque Nacional Amboró, depto. Santa Cruz, Bolivia, nos permitió evaluar el estado de una especie cuyo comportamiento en el ambiente silvestre es prácticamente desconocido. Se describen vocalizaciones, que incluyen notas de llamada “call notes” y el profundo canto de estampida “deep booming song.” Se estimó la densidad de las aves por conteo de los sonidos de estampida “booming birds” durante la estacion reproductiva, usando un método de triangulación con tres puestos de observatión. Este estudio mostró que las aves se agregaban en una parte del área del estudio. Se encontró un nido de Pauxi unicomis y al hembra fue observada durante nueve dias durante la incubación; la hembra incubaba sóla, dejaba el nido por la noche y regresaba a las primeras horas del amanecer.

Type
Research Article
Information
Bird Conservation International , Volume 7 , Issue 3 , September 1997 , pp. 199 - 211
Copyright
Copyright © Birdlife International 1997

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