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

Carved stones standing upright in the forest floor, arranged in a quarter circle, on which large ravens sit

Large hummingbird with wings spread

Simple, standing crow. Model: Crow by YahooJAPAN, licensed under CC BY 3.0 .

Simple ostrich Model: Ostrich by YahooJAPAN, licensed under CC BY 3.0 .

Large ratite with fanned wings

Parrot with spread wings in flight

Cockatoo with head feathers raised

Simple parrot. Model: Parrot by YahooJAPAN, licensed under CC BY 3.0 .

Small parrot bird with folded wings

Small parrot bird with folded wings perching on a simple perch

Parrot with spread wings on a branch. Model: Tropical Bird by lordkylo, licensed underCC BY-SA 3.0 .

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

Large terror bird with a slender body and massive beak

Large terror bird with a slender body and massive beak

Chicks of a large terror bird with a slender body and a massive beak

Chicks of a large terror bird with a slender body and a massive beak

Dead, bare tree with five different ravens sitting on it

Raven with spread wings pointing downwards