Marie Read / Yellow-bellied Sapsucker (Sphyrapicus varius), male drumming, long exposure, New York, USA, April.
01620443
John Chan / Juvenile Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, Southern California, USA, April.
01620436
John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, attempts to take flight, Southern California, USA, April.
01621250
John Chan / Great blue herons (Ardea herodias) courting, bill dueling and bill snapping, Southern California, USA, March.
01619840
Stefan Christmann / Emperor penguin (Aptenodytes forsteri) brooding chick aged 1-3 weeks on feet. Atka Bay, Antarctica. August.
01612532
Juergen Freund / Timelapse of Brolga cranes (Grus rubicunda) and Sarus cranes (Grus antigone) roosting at a waterhole, Bromfield Swamp, Wet Tropics World Heritage Area, North Queensland, Australia.
01556207
Roger Powell / Brolga (Grus rubicundus) feeding on the edge of a field. Werribee Sewerage Works, Werribee, Victoria, Australia
01556206
Roger Powell / Two Brolgas (Grus rubicundus) against agricultural background. Werribee Sewerage Works, Werribee, Victoria, Australia
01541470
Juergen Freund / Brolga cranes (Grus rubicunda) in field as it is irrigated, Mareeba, Queensland,Australia.
01508487
Juergen Freund / Brolga pair (Grus rubicunda) in open savannah, Northern Territory, Australia.
01508577
Juergen Freund / Brolga cranes (Grus rubicunda) taking off from field with cattle, Bromfield Swamp, Atherton Tablelands, Queensland, Australia.
