Adult bull southern elephant seals (Mirounga leonina) fighting for breeding grounds on South Georgia Island, Southern Ocean
Southern elephant seal (Mirounga leonina) mating behavior on South Georgia Island, Southern Ocean
Adult bull Galapagos sea lion (Zalophus wollebaeki) posturing on Fernandina Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Battle-scarred beachmaster southern elephant seal (Mirounga leonina) bellowing a challenger, Peggotty Bluff, South Georgia, Polar Regions
Male Lesser Whitethroat singing at spring, GB
Cape Sugarbird (Promerops cafer), calling in territorial display, Western Cape, South Africa, July
Western Yellow Wagtail (Motacilla flava dombrowskii) male singing defending his territory, May, Romania
