Mike Read / Rock shag (Phalacrocorax magellanicus) at nesting colony on cliff face, Saunders Island, Falkland Islands. December.

Roy Mangersnes / Rock shag (Phalacrocorax magellanicus) coming in to the nest with nesting material. Gypsy Cove, Falkland Islands.

Frederique Olivier / Wide angle shot of a Magellan cormorant (Phalacrocorax magellanicus) breeding site, with chicks and adults on nest ledges, Gypsy Cove, Stanley, Falkland Islands.

Frederique Olivier / Two Magellan cormorant (Phalacrocorax magellanicus) chicks preening on a nest ledge, with an adult resting nearby, Gypsy Cove, Stanley, Falkland Islands.

Frederique Olivier / Tilt shot of a Magellan cormorant (Phalacrocorax magellanicus) preening its chick to another begging for food, Gypsy Cove, Stanley, Falkland Islands.

Frederique Olivier / Magellan cormorant (Phalacrocorax magellanicus) feeding chick, Gypsy Cove, Stanley, Falkland Islands.

Frederique Olivier / Black browed albatross (Thalassarche melanophris) incubating its chick on a nest, pecking at a passing Rock cormorant (Phalacrocorax magellanicus), New Island, Falkland Islands.

Frederique Olivier / Black browed albatross (Thalassarche melanophris) at nest, preening its chick, with Southern rockhopper penguins (Eudyptes chrysocome) and Rock cormorants (Phalacrocorax magellanicus) in the backgroun...

Frederique Olivier / Flock of Peruvian pelicans (Pelecanus thagus) flying past a group of Magellan cormorants (Phalacrocorax magellanicus) perched on rocks, Isla Lobos de Terra, Peru.

Brent Stephenson / Rock shag (Phalacrocorax magellanicus) portrait, Carcass Island, Falkland Islands, South Atlantic, December.

Ole Jorgen Liodden / Rock shag (Phalacrocorax magellanicus) nesting colony on cliffs, Ushuaia, Argentina, February.

Franco Banfi / Rock Shags (Phalacrocorax magellanicus) Puerto Piramides, Golfo Nuevo, Peninsula Valdes UNESCO Natural World Heritage Site, Chubut, Patagonia, Argentina, October

Juan Carlos Munoz / Magellan cormorants / Rock shags (Phalacrocorax magellanicus), on nests on rocky ledges. Puerto Deseado, Patagonia, Argentina, Nov 2008

Juan Carlos Munoz / Magellanic penguins (Spheniscus magellanicus) in their nesting burrows under a rock, with a Blue eyed cormorant colony (Phalacrocorax atriceps) in the background. Patagonia, Argentina, March 2008

Juan Carlos Munoz / Magellanic penguins (Spheniscus magellanicus) in their nesting burrows under a rock, with a Blue eyed cormorant colony (Phalacrocorax atriceps) in the background. Patagonia, Argentina, March 2008

Gabriel Rojo / Magellan cormorant / Rock shag (Phalacrocorax magellanicus) stretching wings, Ria de Puerto Deseado Nature Reserve, Santa Cruz Province, Patagonia, Argentina, December

Roy Mangersnes / Magellan cormorant / Rock shag (Phalacrocorax magellanicus) with nest material, East Falkland Islands. November

Roy Mangersnes / Magellan cormorant / Rock shag (Phalacrocorax magellanicus) flying carrying nest material, East Falkland Islands. November

Roy Mangersnes / Magellan cormorant / Rock shag (Phalacrocorax magellanicus) on nest, East Falkland Islands. November

Roy Mangersnes / Magellan cormorant / Rock shag (Phalacrocorax magellanicus) portrait, East Falkland Islands. November

Roy Mangersnes / Magellan cormorant / Rock shag (Phalacrocorax magellanicus) with nest material, East Falkland Islands. November

Pete Oxford / Portrait of Magellan cormorant / Rock shag (Phalacrocorax magellanicus), Falkland Islands

Pete Oxford / Pair of Magellan cormorants / Rock shags (Phalacrocorax magellanicus) on nest, Falkland Islands

Dave Watts / Magellan / Little Pied Cormorant {Phalacrocorax melanoleucos} sunning, Australia

Dave Watts / Magellan / Little Pied Cormorant {Phalacrocorax melanoleucos} sunning, Australia

Gabriel Rojo / Magellan cormorants + nests {Phalacrocorax magellanicus} Valdez, Patagonia, Argentina

Gabriel Rojo / Magellanic cormorant breeding colony, (Phalacrocorax magellanicus), Puerto deseado Nature reserve, Santa Cruz, Patagonia, Argentina.

Tui De Roy / Rock cormorant (Phalacrocorax magellanicus) nesting on cliff face, Beagle Channel, Patagonia, Argentina