Tui De Roy / Epanola saddelback tortoise (Chelonoidis hoodensis), with Galapagos mockingbird (Mimus parvulus) perched on carapace, Espnola Island, Galapagos.

Andy Rouse / Espanola mockingbird, (Mimus macdonaldi), on beach, Galapagos

Tui De Roy / Espanola mockingbird (Mimus macdonaldi) on beach, Galapagos

Tim Laman / Espanola (Hood) mockingbird (Nesomimus macdonaldi) standing on a Marine iguana (Amblyrhynchus cristatus), Espanola Island (Hood Island), Galapagos Islands.

Tui De Roy / Galapagos mockingbird (Mimus parvulus) perching on a mossy branch, Santa Cruz Island, Galapagos, South America.

Tui De Roy / Galapagos mockingbird (Mimus parvulus) standing on damp forest floor, Santa Cruz Island, Galapagos, South America.

Tui De Roy / Galapagos mockingbird (Mimus parvulus) standing on damp forest floor, Santa Cruz Island, Galapagos, South America.

Tui De Roy / Galapagos mockingbird (Mimus parvulus) feeding on Tournefortia berries, Santa Cruz Island, Galapagos, South America.

Tui De Roy / Espaņola mockingbird (Mimus macdonaldi) watching potentional prey, a Galapagos centipede (Scolopendra galapagoensis), Espaņola Island, Galapagos, South America.

Tui De Roy / Espaņola mockingbird (Mimus macdonaldi) running, Espaņola Island, Galapagos, South America. Long exposure.

Tui De Roy / Galapagos mockingbird (Mimus parvulus), feeding on flightless cricket, Santa Cruz Island, Galapagos Islands.

Tui De Roy / Galapagos mockingbird (Mimus parvulus), on Opuntia cactus flower, Santa Fe Island, Galapagos Islands.

Tui De Roy / Galapagos mockingbird (Mimus parvulus), feeding on Opuntia cactus flower, Santa Fe Island, Galapagos Islands.

Tui De Roy / Galapagos mockingbird (Mimus parvulus), feeding on pieces of dead skin picked from land iguana (Conolophus subcristatus), Santa Fe Island, Galapagos Islands.

Tui De Roy / Galapagos dove (Zenaida galapagoensis), nesting in disused mockingbird nest in Opuntia cactus, Seymour Island, Galapagos Islands.

Tui De Roy / Galapagos land iguana (Conolophus subcristatus) with Galapagos mockingbird (Mimus parvulus) Fernandina Volcano, Galapagos .

Tui De Roy / Galapagos mockingbird (Mimus parvulus) bathing in photographer Tui De Roy's garden pond. Puerto Ayora, Santa Cruz Island, Galapagos.

Doug Wechsler / Espanola mockingbird (Mimus macdonaldi) perched on Marine iguana (Amblyrhynchus cristatus) Espanola Island, Galapgos.

Tui De Roy / Galapagos mockingbird (Mimus parvulus) catching hawkmoth in photographer Tui De Roy's garden, Santa Cruz Island, Galapagos Islands

Tui De Roy / Galapagos mockingbird (Mimus parvulus) fledgling bathing in photographer Tui De Roy's garden, Santa Cruz Island, Galapagos Islands

Tui De Roy / Galapagos mockingbird (Mimus parvulus) parent feeding fledgling in photographer Tui De Roy's garden, Santa Cruz Island, Galapagos Islands

Tui De Roy / Galapagos mockingbird (Mimus parvulus) fledgling in photographer Tui De Roy's garden, Santa Cruz Island, Galapagos Islands

Tui De Roy / Galapagos mockingbird (Mimus parvulus) adult feeding young in photographer Tui De Roy's garden, Santa Cruz Island, Galapagos Islands

Tui De Roy / Galapagos mockingbird (Mimus parvulus) fledgling in photographer Tui De Roy's garden, Santa Cruz Island, Galapagos Islands

Nick Hawkins / Galapagos mockingbird (Mimus parvulus). San Cristobal Island, Galapagos.

Alex Mustard / Tourist photographs an Espagnola mockingbird (Mimus macdonaldi) that has landed on her boot. Espagnola Island, Galapagos National Park, Galapagos Islands. Model released.

Jeff Vanuga / Galapagos mockingbird (Mimus parvulus) perched on cactus. Santa Cruz Island, Galapagos Islands, Ecuador.

Lucas Bustamante / Galapagos mockingbird (Mimus parvulus) perched in tree, Isabela Island, Galapagos.

Tui De Roy / Floreana mockingbird (Nesomimus trifasciatus) from remnant population surviving on two small islets, Galapagos. Critically endangered species.

Tui De Roy / Floreana mockingbird (Nesomimus trifasciatus) perched on flower, from remnant population surviving on two small islets, Galapagos. Critically endangered species.

Tui De Roy / Floreana mockingbird (Nesomimus trifasciatus) perched on opuntia cactus. Part of remnant population surviving on two small islets, Galapagos.

Tui De Roy / San Cristobal mockingbird (Nesomimus melanotis), San Cristobal Island, Galapagos.

Tui De Roy / San Cristobal mockingbird (Nesomimus melanotis), San Cristobal Island, Galapagos.

Roy Mangersnes / Espanola mockingbirds (Nesomimus macdonaldi) aggression between two groups, Espanola Island, Galapagos.

Roy Mangersnes / Galapagos mockingbird (Mimus parvulus) in territorial fight on Genovesa Island, Galapagos.

Roy Mangersnes / Espanola mockingbird (Nesomimus macdonaldi) on the beach at Espanola Island, Galapagos.

Pete Oxford / Galapagos mockingbird (Nesomimus parvulus) landing on tripod of tourist, Galapagos, Endemic.

Ole Jorgen Liodden / Galapagos mockingbird (Mimus parvulus) perched on tree, rear view, Galapagos.

Tui De Roy / Galapagos mockingbirds (Mimus parvulus) Galapagos

Tui De Roy / Galapagos mockingbirds (Mimus parvulus), Galapagos

Tui De Roy / Galapagos mockingbird (Mimus parvulus), Galapagos

Tui De Roy / Galapagos mockingbird (Mimus parvulus) on lichen covered branches, Galapagos

Tui De Roy / Espanola mockingbird (Mimus macdonaldi) on beach, Galapagos

Tui De Roy / Espanola mockingbird (Mimus macdonaldi) on beach, Galapagos

Tui De Roy / Espanola mockingbird (Mimus macdonaldi) on beach, Galapagos

Tui De Roy / Espanola mockingbird (Mimus macdonaldi) foraging on beach, Galapagos

Tui De Roy / Espanola mockingbirds (Mimus macdonaldi) foraging on beach, Galapagos

Tui De Roy / Espanola mockingbird (Mimus macdonaldi) investigating camera equipment on beach, Galapagos