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Circus
genus of Accipitridae within Accipitriformes

trivial name latin name name specimens
Swamp Harrier
Circus approximans 		Circus approximans 001 001
Hen Harrier
Circus cyaneus 		Circus cyaneus 005 005
Montagu`s Harrier
Circus pygargus 		Circus pygargus 004 004
Western Marsh Harrier
Circus aeruginosus 		Circus aeruginosus 008 008

Species comparison1)

Genus Circus: maximal number primaries: 10, maximal number secondaries: 16, maximal number retrices: 12
1) According to Hartmann (2000a, 2000b and 2016)

Random specimens

Western Marsh Harrier
Circus aeruginosus
Montagu`s Harrier
Circus pygargus
Western Marsh Harrier
Circus aeruginosus
Hen Harrier
Circus cyaneus
Hen Harrier
Circus cyaneus
Western Marsh Harrier
Circus aeruginosus
Hen Harrier
Circus cyaneus