White-throated Hawk (Buteo albigula) [XC107893]
by Astrid Wessels from Refugio Neumeyer, Valle Challhuaco, Bariloche, Rio Negro, Argentina (call)
White-throated Hawk (Buteo albigula) [XC48444]
by Frank Lambert from Base hacia el refugio Otto Mailing, PN Nahuel Huapi, Rio Negro, Argentina (whistle)
Subspecies
Higher altitude representative of Madagascar Buzzard (Buteo brachypterus), with which forms superspecies, and in which present species is sometimes included, but no hybridization reported, despite possible range overlap.