Grey goshawk

The grey goshawk (Tachyspiza novaehollandiae) is a strongly built, medium-sized bird of prey in the family Accipitridae that is found in eastern and northern Australia. The white morph of this species is known as the white goshawk. This species was formerly placed in the genus Accipiter.

The grey morph has a pale grey head and back, dark wingtips, barred grey breast and tail, and white underparts. The white morphs of this species and the closely related variable goshawk are the only birds of prey in the world to be entirely white.

Grey goshawks are the largest Tachyspiza on mainland Australia, at about 40 to 55 cm (16 to 22 in) long, with wingspans of 70 to 110 cm (28 to 43 in). Females are much larger than males, weighing about 720 g (1.59 lb) on average (and sometimes scaling up to 990 g (2.18 lb)) while males average 355 g (12.5 oz).