Biología reproductiva del Chimango (Polyborus chimango)

Rosendo M. Fraga; Sergio A. Salvador

doi:10.56178/eh.v12i4.1167

Articles Published 01 November 1986 https://doi.org/10.56178/eh.v12i4.1167

Reproductive biology of the Chimango Caracara (Polyborus chimango)

Polyborus chimango Chimango Caracara Nesting Reproductive biology

Rosendo M. Fraga Dept. of Biological Sciences, University of California Santa Bárbara, Ca. 93106, USA

Sergio A. Salvador Bv. Sarmiento 698, 5900 Villa María, Córdoba, Argentina

Abstract

The reproductive biology of the Chimango Caracara (Polyborus chimango) was studied in the provinces of Córdoba and Buenos Aires. Clumped nesting was observed at both sites, and a dense colony (56 nests in 0.7 ha) was observed in Córdoba. Nest sites at both areas were almost exclusively arboreal. As there were plenty of suitable trees, nest site availability cannot explain clumped nesting; abundance of food is a more likely factor. Mean clutch size was 2.77 eggs, the incubation period 26 to 27 days, and the nestling period 32 - 34 days. Food brought to nestlings include orthopteroid insects, amphibians and small mammals.

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References

Banchs, R. 1984. Hábitat y comportamiento del cuervillo cara pelada (Phimosus infuscatus) durante la época de reproducción. Trabajos del Seminario de Licenciatura en Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.
Barattini, L. P. & R. Escalante. 1958. La fauna indígena. La Parte, Orden Falconiformes. Intendencia Municipal, Montevideo.
Brown, L. & D. Amadon. 1968. Hawks, Eagles and Falcons of the World. Vol. 2. Country Life Books, England.
Burger, J. 1974. Breeding biology and ecology of the Brown-hooded Gull. Auk 91: 601–613.
— 1985. Habitat selection in temperate marsh-nesting birds. Pp. 253–281 in: Habitat Selection in Birds (M. Cody, ed.). Academic Press, Orlando, Florida.
De la Peña, M. R. 1976. Aves de la provincia de Santa Fe. Fascículo 20, Castellví, Santa Fe.
Fraga, R. M. 1980. The breeding of Rufous Hornero (Furnarius rufus). Condor 82: 58–68.
Gibson, E. 1879. Ornithological notes from the neighbourhood of Cape San Antonio, Buenos Ayres. Ibis (4th Series) 3: 405–424.
— 1919. Further ornithological notes from the neighbourhood of Cape San Antonio, Province of Buenos Ayres. Ibis (11th Series) 1: 495–537.
Hudson, W. H. 1920. Birds of La Plata. Vol. 2. J. M. Dent, London.
Lack, D. 1968. Ecological Adaptations for Breeding in Birds. Methuen, London.
Newton, I. 1979. Population Ecology of Raptors. Buteo Books, Vermilion.
Pereyra, J. A. 1937. Contribución al estudio y observaciones ornitológicas de la zona norte de la Gobernación de La Pampa. Memorias del Jardín Zoológico de La Plata 7: 197–326.
Salvador, S. A. 1983. Parasitismo de cría del renegrido (Molothrus bonariensis) en Villa María, Córdoba, Argentina. Historia Natural 3: 149–158.
Yáñez, J. L., M. Núñez & F. Jaksic. 1982. Food habits and weight of Chimango Caracara in Central Chile. Auk 99: 170–171.
Walters, H. 1979. Eleanora’s Falcon – Adaptations to Prey and Habitat in a Social Raptor. University of Chicago Press, Chicago.

How to cite

Rosendo M. Fraga, Sergio A. Salvador (1986). Reproductive biology of the Chimango Caracara (Polyborus chimango). El Hornero, Vol. 12 No. 4 (1986), 223-229. https://doi.org/10.56178/eh.v12i4.1167

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[1] Banchs, R. 1984. Hábitat y comportamiento del cuervillo cara pelada (Phimosus infuscatus) durante la época de reproducción. Trabajos del Seminario de Licenciatura en Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.

[2] Barattini, L. P. & R. Escalante. 1958. La fauna indígena. La Parte, Orden Falconiformes. Intendencia Municipal, Montevideo.

[3] Brown, L. & D. Amadon. 1968. Hawks, Eagles and Falcons of the World. Vol. 2. Country Life Books, England.

[4] Burger, J. 1974. Breeding biology and ecology of the Brown-hooded Gull. Auk 91: 601–613.

[5] — 1985. Habitat selection in temperate marsh-nesting birds. Pp. 253–281 in: Habitat Selection in Birds (M. Cody, ed.). Academic Press, Orlando, Florida.

[6] De la Peña, M. R. 1976. Aves de la provincia de Santa Fe. Fascículo 20, Castellví, Santa Fe.

[7] Fraga, R. M. 1980. The breeding of Rufous Hornero (Furnarius rufus). Condor 82: 58–68.

[8] Gibson, E. 1879. Ornithological notes from the neighbourhood of Cape San Antonio, Buenos Ayres. Ibis (4th Series) 3: 405–424.

[9] — 1919. Further ornithological notes from the neighbourhood of Cape San Antonio, Province of Buenos Ayres. Ibis (11th Series) 1: 495–537.

[10] Hudson, W. H. 1920. Birds of La Plata. Vol. 2. J. M. Dent, London.

[11] Lack, D. 1968. Ecological Adaptations for Breeding in Birds. Methuen, London.

[12] Newton, I. 1979. Population Ecology of Raptors. Buteo Books, Vermilion.

[13] Pereyra, J. A. 1937. Contribución al estudio y observaciones ornitológicas de la zona norte de la Gobernación de La Pampa. Memorias del Jardín Zoológico de La Plata 7: 197–326.

[14] Salvador, S. A. 1983. Parasitismo de cría del renegrido (Molothrus bonariensis) en Villa María, Córdoba, Argentina. Historia Natural 3: 149–158.

[15] Yáñez, J. L., M. Núñez & F. Jaksic. 1982. Food habits and weight of Chimango Caracara in Central Chile. Auk 99: 170–171.

[16] Walters, H. 1979. Eleanora’s Falcon – Adaptations to Prey and Habitat in a Social Raptor. University of Chicago Press, Chicago.