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