Dieta del Aguilucho Langostero (Buteo swainsoni) en su área de invernada (La Pampa, Argentina)

Sonia B. Canavelli; Juan J. Maceda; Andrea C. Bosisio

doi:10.56178/eh.v16i2.900

Short Communications Published 01 December 2001 https://doi.org/10.56178/eh.v16i2.900

Diet of Swainson’s Hawk (Buteo swainsoni) in its wintering grounds (La Pampa, Argentina)

Argentina Buteo swainsoni caterpillars diet grasshoppers La Pampa Swainson’s Hawk

Sonia B. Canavelli INTA, EEA Paraná. CC 128, 3100 Paraná, Entre Ríos, Argentina

Juan J. Maceda Departamento de Ciencias Naturales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa. Av. Uruguay 151, 6300 Santa Rosa, La Pampa, Argentina

Andrea C. Bosisio INTA, EEA Paraná. CC 128, 3100 Paraná, Entre Ríos, Argentina

Abstract

The relative composition of wintering Swainson's Hawk’s (Buteo swainsoni) diet is described based on the analysis of fresh pellets collected in NE La Pampa province, Argentina. Caterpillars (Lepidoptera larvae) constituted the predominant food item based on number of individuals while, in volume, both caterpillars and grasshoppers (Orthoptera) prevailed in the samples. Hawk’s diet versatility is discussed based on spatial and temporal differences in its composition.

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References

ALERSTAM T (1990) Bird migration. Cambridge University Press, Cambridge.
CANAVELLI SB (2000) Abundance, movement and habitat use of Swainson's hawks in their wintering grounds, Argentina. MS thesis, University of Florida, Gainesville.
CASAGRANDE G, CONTI H, SALAZAR J, PEÑA C, MALDONADO D, MARTÍNEZ H, HEVIA R, SCOPPA C, CANO E, FERNÁNDEZ B, MONTES M, MUSTO J, PITTALUGA A Y CANO E (1980) Inventario integrado de los recursos naturales de la provincia de La Pampa. Clima, geomorfología, suelo y vegetación. INTA, Provincia de La Pampa y Universidad Nacional de La Pampa.
ENGLAND AS, BECHARD MJ Y HOUSTON CS (1997) Swainson's hawk (Buteo swainsoni). Pp. 1–28 en: POOLE A Y GILL F (eds) The birds of North America. The Academy of Natural Sciences y American Ornithologists' Union, Philadelphia y Washington, DC.
GOLDSTEIN MI (1997) Toxicological assessment of a Neotropical migrant on its non-breeding grounds: case study of the Swainson's hawk in Argentina. MS thesis, Clemson University, Clemson.
GOLDSTEIN MI, BECHARD MJ, PARKER ML, KOCHERT MN Y LANUSSE AE (2000) Abundance, behavior, and mortality of Buteo swainsoni near San Francisco, Córdoba, Argentina in 1997. Hornero 15:117–121.
GOLDSTEIN MI, WOODBRIDGE B, ZACCAGNINI ME Y CANAVELLI SB (1996) An assessment of mortality of Swainson's hawks on wintering grounds in Argentina. Journal of Raptor Research 30:106–107.
JARAMILLO AP (1993) Wintering Swainson's hawks in Argentina: food and age segregation. Condor 95:475–479.
JOHNSON CG, NICKERSON LA Y BECHARD MJ (1987) Grasshopper consumption and summer flocks of nonbreeding Swainson's hawks. Condor 87:676–678.
LIEBERMANN J (1935) Aves acridiófagas de la República Argentina. Hornero 4:82–90.
LIEBERMANN J (1944) El cincuentenario de la visita de Lawrence Bruner a la Argentina. Hornero 8:556–562.
LITTLEFIELD CD (1973) Swainson's hawks preying on fall armyworms. Southwestern Naturalist 17:433.
MOUCHARD A (1996) Información básica sobre el aguilucho langostero y su conservación. Informe inédito, Asociación Ornitológica del Plata, Buenos Aires.
NEWTON I (1979) Population ecology of raptors. Buteo Books, Vermillion.
PEREYRA JA (1937) Miscelánea ornitológica: aves acridiófagas. Hornero 6:439.
RUDOLPH DC (1993) Swainson's hawk predation on dragonflies in Argentina. Wilson Bulletin 105:365–366.
SCHMUTZ JK (1989) Hawk occupancy of disturbed grasslands in relation to models of habitat selection. Condor 91:362–371.
SERRACIN ARAUJO R Y TIRANTI SI (1996) Stomach contents of a Swainson's hawk from Argentina. Journal of Raptor Research 30:105–106.
SHERRY TW Y HOLMES RT (1995) Summer versus winter limitation of populations: what are the issues and what is the evidence? Pp. 85–120 en: MARTIN TE Y FINCH DM (eds) Ecology and management of Neotropical migratory birds. Oxford University Press, New York.
WHITE CM, BOYCE DA Y STRANECK R (1989) Observations on Buteo swainsoni in Argentina, 1984 with comments on food, habitat alteration and agricultural chemicals. Pp. 79–87 en: MEYBURG BU Y CHANCELLOR RD (eds) Raptors in the modern world. World Wildlife Group of Bird of Prey, Londres.
WOODBRIDGE B, FINLEY K Y TRENT SEAGER S (1995) An investigation of the Swainson's hawk in Argentina. Journal of Raptor Research 29:202–204.
ZACCAGNINI ME, CANAVELLI SB Y DE CARLI R (1996) Conservación del Aguilucho Langostero en Argentina. Propuestas de acción 1996–97. Informe inédito, INTA, EEA Paraná, Paraná.
ZOTTA A (1931) Notas sobre dos rapaces migratorias. Hornero 4:421–424.

How to cite

Sonia B. Canavelli , Juan J. Maceda , Andrea C. Bosisio (2001). Diet of Swainson’s Hawk (Buteo swainsoni) in its wintering grounds (La Pampa, Argentina). El Hornero, Vol. 16 No. 2 (2001), 89-92. https://doi.org/10.56178/eh.v16i2.900

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[1] ALERSTAM T (1990) Bird migration. Cambridge University Press, Cambridge.

[2] CANAVELLI SB (2000) Abundance, movement and habitat use of Swainson's hawks in their wintering grounds, Argentina. MS thesis, University of Florida, Gainesville.

[3] CASAGRANDE G, CONTI H, SALAZAR J, PEÑA C, MALDONADO D, MARTÍNEZ H, HEVIA R, SCOPPA C, CANO E, FERNÁNDEZ B, MONTES M, MUSTO J, PITTALUGA A Y CANO E (1980) Inventario integrado de los recursos naturales de la provincia de La Pampa. Clima, geomorfología, suelo y vegetación. INTA, Provincia de La Pampa y Universidad Nacional de La Pampa.

[4] ENGLAND AS, BECHARD MJ Y HOUSTON CS (1997) Swainson's hawk (Buteo swainsoni). Pp. 1–28 en: POOLE A Y GILL F (eds) The birds of North America. The Academy of Natural Sciences y American Ornithologists' Union, Philadelphia y Washington, DC.

[5] GOLDSTEIN MI (1997) Toxicological assessment of a Neotropical migrant on its non-breeding grounds: case study of the Swainson's hawk in Argentina. MS thesis, Clemson University, Clemson.

[6] GOLDSTEIN MI, BECHARD MJ, PARKER ML, KOCHERT MN Y LANUSSE AE (2000) Abundance, behavior, and mortality of Buteo swainsoni near San Francisco, Córdoba, Argentina in 1997. Hornero 15:117–121.

[7] GOLDSTEIN MI, WOODBRIDGE B, ZACCAGNINI ME Y CANAVELLI SB (1996) An assessment of mortality of Swainson's hawks on wintering grounds in Argentina. Journal of Raptor Research 30:106–107.

[8] JARAMILLO AP (1993) Wintering Swainson's hawks in Argentina: food and age segregation. Condor 95:475–479.

[9] JOHNSON CG, NICKERSON LA Y BECHARD MJ (1987) Grasshopper consumption and summer flocks of nonbreeding Swainson's hawks. Condor 87:676–678.

[10] LIEBERMANN J (1935) Aves acridiófagas de la República Argentina. Hornero 4:82–90.

[11] LIEBERMANN J (1944) El cincuentenario de la visita de Lawrence Bruner a la Argentina. Hornero 8:556–562.

[12] LITTLEFIELD CD (1973) Swainson's hawks preying on fall armyworms. Southwestern Naturalist 17:433.

[13] MOUCHARD A (1996) Información básica sobre el aguilucho langostero y su conservación. Informe inédito, Asociación Ornitológica del Plata, Buenos Aires.

[14] NEWTON I (1979) Population ecology of raptors. Buteo Books, Vermillion.

[15] PEREYRA JA (1937) Miscelánea ornitológica: aves acridiófagas. Hornero 6:439.

[16] RUDOLPH DC (1993) Swainson's hawk predation on dragonflies in Argentina. Wilson Bulletin 105:365–366.

[17] SCHMUTZ JK (1989) Hawk occupancy of disturbed grasslands in relation to models of habitat selection. Condor 91:362–371.

[18] SERRACIN ARAUJO R Y TIRANTI SI (1996) Stomach contents of a Swainson's hawk from Argentina. Journal of Raptor Research 30:105–106.

[19] SHERRY TW Y HOLMES RT (1995) Summer versus winter limitation of populations: what are the issues and what is the evidence? Pp. 85–120 en: MARTIN TE Y FINCH DM (eds) Ecology and management of Neotropical migratory birds. Oxford University Press, New York.

[20] WHITE CM, BOYCE DA Y STRANECK R (1989) Observations on Buteo swainsoni in Argentina, 1984 with comments on food, habitat alteration and agricultural chemicals. Pp. 79–87 en: MEYBURG BU Y CHANCELLOR RD (eds) Raptors in the modern world. World Wildlife Group of Bird of Prey, Londres.

[21] WOODBRIDGE B, FINLEY K Y TRENT SEAGER S (1995) An investigation of the Swainson's hawk in Argentina. Journal of Raptor Research 29:202–204.

[22] ZACCAGNINI ME, CANAVELLI SB Y DE CARLI R (1996) Conservación del Aguilucho Langostero en Argentina. Propuestas de acción 1996–97. Informe inédito, INTA, EEA Paraná, Paraná.

[23] ZOTTA A (1931) Notas sobre dos rapaces migratorias. Hornero 4:421–424.