Marie Read / American bittern (Botaurus lentiginosus) calling / booming in a cattail marsh to mark territory, Salt Alkaline Lake, Kidder County, North Dakota, USA, June.
Vishal Jadhav / Exhausted Short-eared owl (Asio flammeus) surrounded by House crow (Corvus splendens) group at dawn, one crow dives down to attack, Maharashtra, India, April.
Vishal Jadhav / Indian jackal (Canis aureus indicus) pair howling, Maharashtra, India, September.
Brian Bevan / Yellowhammer (Emberiza citronella) male singing from bramble then flies away, Bedfordshire, UK, June.
Terry Whittaker / White-throated dipper (Cinclus cinclus) singing on old bicycle wheel, River Mersey, Greater Manchester, UK.
Doug Gimesy / Sub-Antarctic / Brown skua (Stercorarius antarcticus) flying away with egg stolen from a Royal penguin colony (Eudyptes schlegeli), Macquarie Island, Australian Territory. December.
Claudio Contreras / Laysan albatross (Phoebastria immutabilis) calling mate,Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March
Ismaele Tortella / Eurasian otter (Lutra lutra) swimming with snow on its back, calling, Norway
Will Burrard-Lucas / A mating pair of leopards (Panthera pardus) caught in front of a camera trap at night, Laikipia Wilderness Camp, Kenya. Communication Arts Annual 62 Competition 2021 Winner Book Category; Sony World P...
Edwin Giesbers / Grey Wolf (Canis lupus), snarling protectively over carcass, Biotoppark Anholt, Germany, May. Captive.
Alex Mustard / Saddleback anemonefish (Amphiprion polymnus) barks a warning as it guards a clutch of developing eggs (beneath it) laid on a small stone, below a fold in its home, a Haddon's sea anemone (Stichoda...
Brian Bevan / Male European cuckoo (Cuculus canorus) calling to another male from branch, flies off, Bedfordshire, England, UK, May.
Brian Bevan / Male European cuckoo (Cuculus canorus) calling to another male, before flying off in response to a female, Bedfordshire, England, UK, May.
Konrad Wothe / Macgregor's bowerbird (Amblyornis macgregoriae) singing in rainforest, Papua New Guinea.
Marie Read / Red-winged Blackbird (Agelaius phoenicus) male singing from snow-covered red maple (Acer rubrum) in flower, Ithaca, New York, USA. April 2020.
Danny Green / Red deer stag (Cervus elaphus) roaring. Bradgate Park, Leicestershire, UK, October.
Erlend Haarberg / Black grouse (Lyrurus tetrix), male calling early in the morning, Norway. May.
Markus Varesvuo / Red-throated Diver (Gavia stellata) calling, Iceland, June.
Felis Images / Asiatic lion (Panthera leo persica), female and cubs in morning light, cub biting mother's leg. Gir National Park, Gujarat, India. Photo?hillip Ross/Felis Images