Occasional hybridization recorded with H. longirostris#R#R#R. Form opthalmicus generally considered to be a race of present species on basis of putative region of intergradation with nominate fuliginosus in W Australia, where both taxa rare, but no good evidence of interbreeding; also, some confusion regarding range limits of both forms, with opthalmicus usually said to be restricted to Gulf of Carpentaria and Cape York Peninsula; striking differences in eyering colour suggest that opthalmicus may well be a distinct species; field and laboratory research required in order to clarify this case; emendation of name to ophthalmicus is not justified. Two subspecies currently recognized.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!