Accipiter collaris is known from a few localities on the west and east slopes of the Andes from south-west Venezuela (Mérida, Táchira), through Colombia and Ecuador, with a recent range extension of 1,500 km to south Peru⁵. It occurs in forest and forest edge, mostly subtropical and moist or wet, at 1,700-1,950 m in Peru² and at 600-1,800 m in Colombia^3,5. Although occasionally relatively abundant^1,5, it is usually rare and highly sensitive to human disturbance⁴.