Cyril Ruoso / Guanay cormorant (Phalacrocorax bougainvillii) mass breeding colony on guano Island, Pescadores, Peru
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Cyril Ruoso / Guanay cormorant (Phalacrocorax bougainvillii) one defending nest from another in breeding colony, guano island Pescadores, Peru
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Cyril Ruoso / Guanay cormorant (Phalacrocorax bougainvillii) just above breeding colony on guano island, Isla Pescadores, Peru
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Cyril Ruoso / Guanay cormoran (Phalacrocorax bougainvillii) coming into land on guano island of Pescadores, Peru
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Cyril Ruoso / Guanay cormorant (Phalacrocorax bougainvillii) mass breeding colony on cliffs of guano island Pescadores, Peru
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Cyril Ruoso / Guanay cormorant (Phalacrocorax bougainvillii) biologist catching birds for fitting with GPS tracking device, guano island of Pescadores, Peru
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Cyril Ruoso / Guanay cormorant (Phalacrocorax bougainvillii) breeding colony of around 500,000 birds at Punta San Juan, guano peninsula, Peru, November 2013
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Cyril Ruoso / Guanay cormorant (Phalacrocorax bougainvillii) breeding colony of around 500,000 birds at Punta San Juan, guano peninsula, Peru, November 2013
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Cyril Ruoso / Band-tailed Gull (Larus belcheri) preying on the egg of a Guanay Cormorant (Phalacrocorax bougainvillii), Isla Pescadores, Peru
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Cyril Ruoso / Guanay Cormorant (Phalacrocorax bougainvillii) breeding colony on a guano island, Isla Pescadores, Peru
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Cyril Ruoso / Guanay Cormorant (Phalacrocorax bougainvillii), San Fernando Reserve, Nazca Desert, Peru
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Cyril Ruoso / Guanay Cormorant (Phalacrocorax bougainvillii) breeding colony on a guano island, Isla Pescadores, Peru
