Frigate birds are distinctive looking seabirds with long wings and tails, who catch their food in flight, as well as robbing from other birds. The males have a red pouch which they inflate during mating season to attract females.
Frigate Bird with red inflated pouch, Galapagos Islands, Ecuador (LOOK/Robert Harding)
Magnificent frigate birds, Santa Cruz Island, Galapagos, Ecuador (age fotostock/Robert Harding)
Adult male great frigate bird with inflated gular on North Seymour Island in the Galapagos Islands (Michael Nolan/Robert Harding)
Male great frigate bird in breeding plumage on Genovesa (Tower) Island, in the Galapagos Island Archipelago (Michael Nolan/Robert Harding)
Male great frigate bird in breeding plumage, Galapagos Island Archipelago (Michael Nolan/Robert Harding)
See more photos of frigate birds here