Distribution
In Argentina, it is found north to Neuquén Province at about 36° latitude. The northern limit of the breeding range in Chile is not well known. In significant numbers, the Chilean Hawk probably only occurs north to O'Higgins Region, though it at least occasionally breeds in Valparaíso Region, and perhaps also in Coquimbo Region and Fray Jorge National Park from where there are a few sightings. The southern limit is generally accepted to be at about 55° latitude in Tierra del Fuego.
Their movement patterns are not well resolved. Generally it seems to be sedentary, but there is a seasonal influx of Chilean Hawks to NW Argentina. Perhaps they follow the swarms of migrant passerines or even Chilean Pigeons (Columba araucana). It has been recorded as breeding in Magallanes Province but migrating away afterwards. Young birds seem to be quite prone to vagrancy: there is one certain and one possible record from Tafí del Valle and Oasis de Pica, respectively; both locations are hundreds of kilometers north even of the suspected breeding range.
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