African marsh harrier
African marsh-harrier
Hen harrier
(tree size 3)
Circus cyaneus
Western marsh harrier
(tree size 2)
Western marsh-harrier
Montagu’s harrier
Circus pygargus
Pallid harrier
Circus macrourus
Short-winged harrier
Long-winged harrier
Swamp harrier
(tree size 1)
Australasian harrier
Eyles' harrier
Circus eylesi
Pied harrier
Circus melanoleucos
Cinereous harrier
Circus cinereus
Spotted harrier
(tree size 1)
Circus assimilis
Black harrier
Circus maurus
Réunion harrier
Reunion marsh-harrier
Eastern marsh harrier
Eastern marsh-harrier
Wood harrier
Circus dossenus
Papuan harrier
Circus spilothorax
Circus hudsonius
Northern harrier
Malagasy harrier
Madagascar marsh-harrier
Circus teauteensis
Circus lalandii
Circus megaspilus
Circus pallidus
Circus philippinensis
Circus superaliaris
Circus variegatus
Circus wolfi
Circus rufus