The pale morph resembles the Red-tailed in having a rufous tail, brown upperparts, and pale underparts, but is more uniformly streaked below. The dark morph is black overall, with a grayish tail banded narrowly in black.
It occurs in a variety of habitats, mostly open, in southern and central Argentina and Chile. It inhabits the ecotone between Nothofagus forest and steppe grassland from sea level to at least 1,200 m
Its habitat has been negatively affected by logging and overgrazing since the introduction of sheep and cattle
Feeding behavior is poorly known, but it is known to take small mammals and birds, generally hunting from a perch.
This species is thought to have a small global population and is considered Near Threatened. If further infomation indicates that its total population fals below 1,000 mature individuals, it would qualify for uplisting to Vulnerable. [conservation status from birdlife.org]
The stick nest is placed high, over 33 meters, in a tree. It is lnied with feathers and wool. One nest contained three chicks.
- spanwidth min.: 125 cm
- spanwidth max.: 135 cm
- size min.: 54 cm
- size max.: 60 cm
- incubation min.: 0 days
- incubation max.: 0 days
- fledging min.: 0 days
- fledging max.: 0 days
- broods 0
- eggs min.: 0
- eggs max.: 0
- Conservation Status