SciELO - Scientific Electronic Library Online

 
vol.18 número1Dieta del Aguilucho Común (Buteo polyosoma) en un área boscosa de la Patagonia Chilena y su relación con la abundancia de roedores presaPrimeros antecedentes de la dieta de la Lechuza de Campanario (Tyto alba) en el departamento Ñeembucú (Paraguay) índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

Compartir


El hornero

versión On-line ISSN 1850-4884

Resumen

FIGUEROA ROJAS, Ricardo A.. Aerial talon-grappling between the White-throated Hawk (Buteo albigula) and Red-backed Hawk (Buteo polyosoma) in central-south Chile. Hornero [online]. 2003, vol.18, n.1, pp. 53-55. ISSN 1850-4884.

During the summer of 2002, I observed a direct aggressive contact between a White-throated Hawk and a Red-backed Hawk in central-south Chile. Each of the hawks in flight grappled its talons with the other, and pushed its feet against its opponent, rotating briefly downward in "cartwheels". Afterwards, the birds broke free of each other's talons. No injury or loss of aerodynamic control was apparent. This type of antagonistic display, utilized presumably as territorial defense, would be the first reported for Falconiforms in Chile.

Palabras clave : aerial talon-grappling; Buteo albigula; Buteo polyosoma; "cartwheel-like" rotation.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License