Kerstin Hinze / White necked raven (Corvus albicollis) Giant's Castle Nature Reserve, Drakensberg, KwaZulu-Natal, South Africa, October

Kerstin Hinze / White necked Raven (Corvus albicollis), Giant's Castle, Drakensberg, KwaZulu-Natal, South Africa, October

Konrad Wothe / White-necked Raven (Corvus albicollis) attacking its mirror image, Mahale Mountains National Park, Tanzania

Tony Phelps / Angulate tortoise (Chersina angulata) remains of adult probably predated by cape crow or white necked raven, Oudtshoorn, Little Karoo, Western Cape, South Africa

Steven Kazlowski / White necked raven (Corvus cryptoleucus) in flight over Kasegaluk lagoon and outside the arctic village of Point Lay, Alaska, USA, June

Vincent Grafhorst / White-necked Raven (Corvus albicollis) scavenging a piece of bone, Giant's Castle Nature Reserve, South Africa

Vincent Grafhorst / White-necked Raven (Corvus albicollis) scavenging a piece of bone, Giant's Castle Nature Reserve, South Africa

Mike Wilkes / White necked raven (Corvus cryptoleucus) standing in grass, Tanzania, East Africa

Mike Wilkes / African White necked raven portrait {Corvus cryptoleucus} Serengeti NP, Tanzania

John Cancalosi / African white necked raven {Corvus albicollis} South Africa

Richard Du Toit / African white necked ravens fighting {Corvus albicollis} Giants Castle South Africa

John Cancalosi / White necked raven calling {Corvus cryptoleucus} South Africa