Mark Bowler / Guanay Cormorant / Shag (Phalacrocorax / Leucocarbo bougainvillii) on water. Paracas National Reserve, Peru, August.

Kevin Schafer / Guanay Cormorant (Phalacrocorax bougainvillii) flock flying, Peru

JIM CLARE / Juvenile Guanay cormorant {Leucocarbo / Phalacrocorax bougainvillii} Guano Islands, Peru.

JIM CLARE / Guanay cormorant colony on beach {Leucocarbo / Phalacrocorax bougainvillii} San Juan, Peru.

Tui De Roy / Guanay Cormorant (Phalacrocorax bougainvillii) nesting colony, species is the number one guano producer since Incan times, Independencia Island, Peru

Tui De Roy / Guanay Cormorant (Phalacrocorax bougainvillii) guano is mined by seasonal labor from Andean villages who collect guano on rotation system, Independencia Island, Peru

Tui De Roy / Guanay Cormorant (Phalacrocorax bougainvillii) nesting colony, species is the number one guano producer since Incan times, Independencia Island, Peru

Doug Allan / Guanay cormorants {Leucocarbo / Phalacrocorax bougainvillii} Punta Tompo, Argentina, South America

JIM CLARE / Guanay cormorant colony in surf {Leucocarbo / Phalacrocorax bougainvillii} San Juan, Peru.

JIM CLARE / Guanay cormorant colony with chicks {Leucocarbo / Phalacrocorax bougainvillii} Guano Island, Peru.