Frederique Olivier / Wide angle shot of a large flock of Blue footed boobies (Sula nebouxii) taking off from the sea and diving on a bait ball, Isla Lobos de Terra, Peru.

Frederique Olivier / Wide angle shot of a large flock of Blue footed boobies (Sula nebouxii) taking off from the sea and diving on a bait ball, Isla Lobos de Terra, Peru.

Frederique Olivier / Pair of Blue footed boobies (Sula nebouxii) courting, with the male picking up and offering grass, Isla Lobos de Terra, Peru.

Ingo Arndt / Brown Booby (Sula leucogaster plotus) head portrait, with wide bill open, Christmas Island, Indian Ocean, Australian Territory, November

Ingo Arndt / Red-footed Booby (Sula sula rubripes) in flight, returning to breeding colony after sunset, Christmas Island, Indian Ocean, Australian Territory, November.

Ingo Arndt / Blue footed booby with chick and egg at ground nest {Sula nebouxii} Seymour Is, Galapagos

Pete Oxford / Red-footed Booby (Sula sula) juvenile flying, Genovesa Island, Galapagos Islands, Ecuador

Pete Oxford / Red-footed Booby (Sula sula) flying juvenile being photographed by tourist, Genovesa Island, Galapagos Islands, Ecuador

Tui De Roy / Blue-footed Booby (Sula nebouxii) pair courting, Santa Cruz Island, Galapagos Islands, Ecuador

Tui De Roy / Nazca boobies (Sula granti) against dawn sky. Espanola Island, Galapagos, Ecuador, May.

Tui De Roy / Blue-footed Booby (Sula nebouxii) sky pointing during courtship dance, Galapagos Islands, Ecuador. Sequence 1 of 3

Ole Jorgen Liodden / Blue-footed Booby (Sula nebouxii) performing courtship display. Galapagos