Huge, flightless bird with a massive beak and powerful clawed feet, wearing ornate armor with feathered headdresses

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet, lying dead on the ground

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet that preys on a Propalaeotherium gat

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Huge, flightless bird with a massive beak and powerful clawed feet

Juvenile of a huge, flightless bird with a massive beak and powerful clawed feet

Juvenile of a huge, flightless bird with a massive beak and powerful clawed feet

Hollow tree trunk sheltering a nest with a large egg and one with a Kelenken chick

Nest of a prehistoric giant bird with a chick sitting in the middle

Nest of a prehistoric giant bird with an egg in the middle

Large terror bird with a slender body and massive beak

Large terror bird with a slender body and massive beak

Large terror bird with a slender body and massive beak

Large terror bird with a slender body and massive beak