Grey Hawk vs Grey-lined Hawk

In short

The Grey Hawk (Buteo plagiatus) and Grey-lined Hawk (Buteo nitidus) are similar raptors, but the Grey Hawk is distinguished by its white 'U' shape on the dorsal surface at the base of the tail. Both species have similar plumage, but subtle differences in behavior and habitat can aid identification.

Identification tips

1. Look for the white 'U' shape on the dorsal tail base of the Grey Hawk. 2. Observe flight pattern: Grey Hawk has a more accipiter-like flight. 3. Consider geographic location: Grey Hawk is more likely in North America, while Grey-lined Hawk is found further south.

Size

Both species are medium-sized hawks, but the Grey Hawk is slightly larger, with females noticeably larger than males.

Plumage

Both hawks have gray upperparts and barred underparts. The Grey Hawk features a distinctive white 'U' on the dorsal tail base, while the Grey-lined Hawk lacks this mark. Juveniles of both species are similar, with streaked underparts.

Behaviour

The Grey Hawk exhibits an accipiter-like flight pattern with rapid wing beats followed by glides. This behavior is less pronounced in the Grey-lined Hawk.

Habitat

The Grey Hawk is more commonly found in North America, particularly in Arizona, while the Grey-lined Hawk is more widespread in Central and South America.