Gabriel Rojo / South american tern colony {Sterna hirundinacea} Valdez peninsula, Argentina

Roland Seitre / Conservation worker Ana Maria Velasquez and an assistant with artificial nesting boxes for parrots to raise chicks in. Orejiamarillo Nature Park, Jardin, Antioquia, Colombia.

Bryan and Cherry Alexander / Striated / Forster's caracara (Phalcoboenus australis) in flight over West Point Island, Falkland Islands.

Bryan and Cherry Alexander / Boys feeding fish to a sealion surrounded by Pelicans (Pelicanus occidentalis) in Puerto Ayora fish market, Santa Cruz, Galapagos Islands, January 2005.

Tim Laman / Galapagos penguin (Spheniscus mendiculus) portrait, Galapagos, Endangered species

Tim Laman / Galapagos penguin (Spheniscus mendiculus) with chick, Galapagos, Endangered species

Tim Laman / Great blue heron (Ardea herodias) on rocky shore, Galapagos

Tim Laman / Blue-footed booby (Sula nebouxii excisa) taking off from the water. Punta Vincente Roca, Isabela Island, Galapagos Islands.

Tim Laman / Swallow-tailed gull (Creagrus furcatus) flying. Champion Islet off Floreana (Charles) Island, Galapagos Islands.

Tim Laman / Brown pelican (Pelecanus occidentalis) subadult flying. Champion Islet off Floreana (Charles) Island, Galapagos Islands.

Tim Laman / Blue-footed booby (Sula nebouxii excisa) flying. Punta Vincente Roca, Isabela Island, Galapagos Islands.

Tim Laman / Galapagos penguin (Spheniscus mendiculus)swimming. Punta Vincente Roca, Isabela Island, Galapagos Islands.