Tui De Roy / Espanola / Hood mockingbird (Mimus macdonaldi) young 'helpers' being submissive to older bird, Espanola Island, Galapagos

Pete Oxford / Hood Island Mockingbird (Nesomimus trifasciatus macdonaldi) Punta Cevallos, Española / Hood Island, Galapagos Islands

Tim Laman / Floreana (Charles) mockingbird (Nesomimus trifasciatus). Champion Islet off Floreana (Charles) Island, Galapagos Islands. Endangered

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

Tim Laman / Espanola (Hood) mockingbird (Nesomimus macdonaldi) standing on a camera tripod. Espanola (Hood) Island, Galapagos Islands.

LUKE B. BARNETT / Floreana / Charles mockingbird {Nesomimus trifasciatus} feeding on cactus, Espanola Island, Galapagos, Janaury, Endangered

Nick Upton / Hood island mocking birds (Nesomimus trifasciatus macdonaldi) feeding on Nazca booby (Sula granti) eggs, Galapagos

Nick Upton / Hood island mocking birds (Nesomimus trifasciatus macdonaldi) sucking blood from Nazca booby (Sula granti) chick, Galapagos

Pete Oxford / Hood Island mockingbird (Nesomimus trifasciatus macdonaldi) beside feet of tourist, Hood / Espanola Island, Galapagos

Pete Oxford / Hood Island mockingbird (Nesomimus trifasciatus macdonaldi) beside feet of tourist, Hood / Espanola Island, Galapagos

Pete Oxford / Hood Island mockingbird {Nesomimus trifasciatus macdonald} Hood / Española Island, Galapagos

JIM CLARE / Hood mocking birds {Nesomimus trifasciatus macdonald} attacking Masked booby chick, Galapagos