John Cancalosi / Magnificent frigatebird {Fregeta magnificens} male courtship display, Antigua, West Indies

Tui De Roy / Magnificent frigatebird (Fregata magnificens) in flight over sea between Isabela Island and Fernandina Island, Galapagos.

David Pattyn / Magnificent Frigatebirds (Fregata magnificens) in flight, Puerto Lopez , Santa Elena Peninsula, Manabi Province, Ecuador, July

David Pattyn / Magnificent Frigatebirds (Fregata magnificens) trying to steal fish from a fisherman coming on land with a fresh catch, Puerto Lopez , Santa Elena Peninsula, Manabi Province, Ecuador, July

Sandesh Kadur / Magnificent frigatebird (Fregata magnificens) resting on the ground with red throat pouch inflated, Galapagos Islands, Ecuador.

Lynn M. Stone / Magnificent frigate bird (Fregata magnificens) perched in Red mangrove (Rhizophora mangle) tree. Tampa Bay islet roosts, Tierra Verde, Pinellas County, Florida, USA.

Lynn M. Stone / Magnificent frigate bird (Fregata magnificens) in flight with red pouch inflated Tampa Bay, Tierra Verde, Pinellas County, Florida, USA.

Lynn M. Stone / Magnificent frigate bird (Fregata magnificens) perched in Red mangrove (Rhizophora mangle) tree. Tampa Bay islet roosts, Tierra Verde, Pinellas County, Florida, USA.

Claudio Contreras / Magnificent frigatebird (Fregata magnificens) colony, Espiritu Santo National Park, Sea of Cortez (Gulf of California), Mexico, February

Claudio Contreras / Magnificent frigatebird (Fregata magnificens) juvenile landing, Espiritu Santo National Park, Sea of Cortez (Gulf of California), Mexico, February

David Fleetham / Adolescent Magnificent frigate bird (Fregata magnificens) in flight over Santa Cruz Island, Galapagos Archipelago, Ecuador.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) hunting tuna, with scavenging Magnificent frigatebird (Fregata magnificens). A group of the sea lion bulls have learnt to herd Pelagic yellowfin tuna into a sm...