Observations on the breeding behavior of the Variable Hawk (Geranoaetus polyosoma) in the Atacama Desert, Chile
Author
dc.contributor.author
Medrano, Fernando
Author
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Cerpa, Patrich
Author
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Reyes, Diego
Author
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Cuevas, Cristian
Admission date
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2018-05-14T17:33:30Z
Available date
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2018-05-14T17:33:30Z
Publication date
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2017
Cita de ítem
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Revista Brasileira de Ornitologia 25(4): 245–247
es_ES
Identifier
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0103-5657
Identifier
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https://repositorio.uchile.cl/handle/2250/147725
Abstract
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Although the Variable Hawk (Geranoaetus polyosoma) is a common and broadly distributed raptor in the Neotropics,
its breeding ecology is almost unknown. Using video cameras, we collected data on the parental and nestling behavior of this hawk
at the early-brood rearing period from one location in the Atacama Desert of Chile. An attempt to collect data in a second nest
failed due to methodological deficiencies, which suggested improvements to sampling design in future studies. As most accipitrid
raptors, we found that the female performed the majority of the parental activities occurring at the nest: she fed the chicks, protected
them from high solar radiation and stayed on the nest at night. Nestlings were fed with Chilean Iguana (Callopistes macullatus)
and Darwin's Leaf-eared Mouse (Phyllotis darwini). We also describe some nestling behaviors. With these observations, we add
information to the breeding ecology of this species and encourage the use of low-cost technology to monitor wildlife, but with
certain considerations.