Abstract
From February to August 1993 and from November 1993 to February 1994 seabird occurrence around Isla del Coco (OS030'N, 87°03'W), Costa Rica, was recorded as part of a larger field study on dolphin ecology. This note reports the first known records of Diomedea irrorata and Creagrus frcatus, and nesting of Sula dactylatra at Isla del Coco.
Highlights
Diomedea irrorat a: A s ingle D. irrorata (Procellariformes: Diomedeidae) was sighted on May 7, 1993, flying close to the water surface, about 1 km northeast of Montagne islet (OS031'N, 87°02'W)
Immatures S. d a ctylatra have ' bee n observed roosting o n several islets and adults fed throughout the two seasons alongside S. leucog ast er and S. sula
Funding was provided by the Marine Mammal Research Prpgram, Texas A&M University at Galveston; Parque Nacional Isla del Coco, and the Embassy óf The Netherlands in Costa Rica
Summary
Diomedea irrorat a: A s ingle D. irrorata (Procellariformes: Diomedeidae) was sighted on May 7, 1993, flying close to the water surface, about 1 km northeast of Montagne islet (OS031'N, 87°02'W). Sula dactylatra: Between February and August 1993, and from Novemb e r 1993 through February 1994, three adult pairs of Sula dacty latra (Pelecaniformes: Sulidae) roosted at the inner islet of Dos Amigos (OS031'N, 87°Q6'W).
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