Sivhauk, Circus aeruginosus Morten Jørgen Didriksen Creative Commons Attribution-NoDerivs.

Myrhauk, Circus cyaneus "Low-flying harrier" by Wolfpix via Flickr, Creative Commons Attribution-NoDerivs.

Detaljert systematikk:

Sivhauk, Circus aeruginosus

U.art Circus aeruginosus aeruginosus (Legg til)
U.art Circus aeruginosus harterti (Legg til)

U.art Circus approximans approximans (Legg til)
U.art Circus approximans gouldi (Legg til)

Myrhauk, Circus cyaneus

U.art Circus cyaneus cyaneus (Legg til)
U.art Circus cyaneus hudsonius (Legg til)

U.art Circus maillardi macrosceles (Legg til)
U.art Circus maillardi maillardi (Legg til)

U.art Circus spilonotus spilonotus (Legg til)
U.art Circus spilonotus spilothorax (Legg til)