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Migration
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Columbia River
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Double-crested cormorant -- Food -- Columbia River Estuary (Or. and Wash.)
Remove constraint Subject: Double-crested cormorant -- Food -- Columbia River Estuary (Or. and Wash.)
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Double-crested cormorants (Phalacrocorax auritus) and Brandt’s cormorants (P. penicillatus) nest sympatrically in a large mixed-species colony on East Sand Island (ESI) in the Columbia River estuary. Ecological ...
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This dissertation focuses on the predator-prey relationship between two species of avian predators, Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus), and one of ...
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