Remarks on the Taxonomy of some Australasian Raptors

Abstract

Haliastur is considered doubtfully separable from Milvus. Circus approximans and Circus spilonotus are considered to be species, which, along with three others, compose a superspecies of marsh harriers Circus [aeruginosus]. Occurrence of Circus melanoleucus in New Guinea is questioned. Erythrotriorchis and Megatriorchis are considered synonyms of Accipiter. Status of Aquila gurneyi and A. audax discussed.