Red-tailed tropicbird (Phaethon rubricauda), Kilauea Point National Wildlife Refuge, Kauai, Hawaii, United States of America, Pacific

Red-billed oxpeckers (Buphagus erythrorynchus), Zimanga game reserve, South Africa

Adult Swallow-Tailed Gull, showing breeding season red rimmed eye, a nocturnal equatorial seabird, found almost exclusively in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Southern carmine bee-eater (Merops nubicoides), Chobe National Park, Botswana, Africa

Great Spotted Woodpecker makes nesting hole in Poplar tree , Hampstead, London, United Kingdom

Red-legged French Partridge, UK

Great Spotted Woodpecker makes nesting hole in Poplar tree , Hampstead, London, United Kingdom

Hawaii, United States Of America, Red-Footed Booby (Sula Sula) Pitches Forward In Flight With Tail Feathers And Feet Flared For Braking

Male Pyrrhuloxia (Cardinalis sinuatus) perched on a dead branch in the foothills of the Chiricahua Mountains near Portal; Arizona, United States of America

A red-billed oxpecker, Buphagus erythrorhynchus, perches vertically on the tail of a buffalo, Syncerus caffer, direct gaze, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa