Evidences of Rock shags (Phalacrocorax magellanicus) and Imperial cormorants (Ph. atriceps) leaving their nest by night

Imperial Cormorants Phalacrocorax atriceps and Rock Shags P. magellanicus are foot-propelled pursuit divers usually described as visual feeders (Johnsgard 1993). Previous studies describing Imperial Cormorant and Rock Shag feeding behaviour show that birds forage from dawn to dusk (Croxall et al. 19...

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Bibliographic Details
Main Authors: Sapoznikow, Alexandra, Quintana, Flavio Roberto
Format: Article in Journal/Newspaper
Language:English
Published: African Seabird Group
Subjects:
Online Access:http://hdl.handle.net/11336/101516
Description
Summary:Imperial Cormorants Phalacrocorax atriceps and Rock Shags P. magellanicus are foot-propelled pursuit divers usually described as visual feeders (Johnsgard 1993). Previous studies describing Imperial Cormorant and Rock Shag feeding behaviour show that birds forage from dawn to dusk (Croxall et al. 1991, Quintana 1999, 2001). Fil: Sapoznikow, Alexandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina Fil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Wildlife Conservation Society; Estados Unidos