Creagrus

For example, the waved albatross (Diomedea irrorata), which is considered endemic to Espanola Island spends long periods of time at sea; the flightless cormorant (Nannopterum harrisi) is the only flightless species from its genus; the swallow-tailed gull (Creagrus furcatus); and lava gull (Larus fuliginosus) considered one of the rarest gulls in the world.

Galápagos Islands xeric scrub 2007

Over 50 bird species include the world's second largest colony (25-30,000) of masked boobies Sula granti (VU), as well as the endangered swallowtailed gull Creagrus furcatus (EN), the Galapagos petrel Pterodroma phaeopygia (CR), and the peregrine falcon Falco peregrinus, Elliot's storm petrel Oceanites gracilis, Hornby's storm petrel Oceanodroma hornbyi, magnificent and greater frigate birds Fregata magnificens and F. minor.

Malpelo Island Flora and Fauna Sanctuary, Colombia 2008