Female northern harrier (Circus cyaneus) in flight while hunting, Farmington Bay, Utah, United States of America, North America

Adult red-legged honeycreeper (Cyanerpes cyaneus), Gamboa, Gatun Locks, Panama, Central America

Male and female Red-legged Honeycreeper (Cyanerpes cyaneus) on a branch, Costa Rica

Red leg honey creeper (Cyanerpes cyaneus), Sarapiqui, Costa Rica, Central America

Female Northern Harrier (Circus cyaneus) in flight hunting, Antelope Island State Park, Utah, United States of America, North America

Female Northern Harrier (Circus cyaneus) in flight, Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America

Blue Penstemon (Penstemon cyaneus), Shoshone National Forest, Wyoming, United States of America, North America

Common Octopus (Octopus cyaneus). Seychelles (RR)

Large blue octopus (Octopus cyaneus) among stony corals. Dive site Erg Fougani, Mangrove Bay, El Quesir, Egypt, Red Sea, Africa

Superb Fairywren (Malurus cyaneus), Port Campbell National Park, Great Ocean Road, Victoria, Australia

Turquoise Honeycreeper or Red-footed Honeycreeper (Cyanerpes cyaneus), male on branch, Boca Tapada region, Costa Rica, Central America

Hen Harrier (Circus cyaneus)

Hen Harrier (Circus cyaneus)

Red-legged Honeycreeper (Cyanerpes cyaneus) about to take flight, Costa Rica

Hen Harrier (Circus cyaneus) male posted on a pole in the heart of a cereal plain

Hen Harrier (Circus cyaneus) female in flight on the plain of Caen, Calvados, Normandy, France

Hen Harrier (Circus cyaneus) female in flight on the plain of Caen, Calvados, Normandy, France

Hen Harrier (Circus cyaneus) in flight in spring, looking for prey above a cereal field in the plains of Calvados, Normandy, France