Notas faunísticas y bioecológicas de Península Valdés y Patagonia. XXVI. Estudio etológico en el hábitat (comportamiento colonial, caliológico, sexológico y parental) de <i> Spheniscus magellanicus </i> (L. R. Forster, 1781) en Bahía Janssen, Punta Tombo y Punta Clara, Chubut, Argentina

Faunistic and bioecological note. of Península Valdéz and Patagonia. XXVI. Behavioral satudies of breeding magellanic penguin <i>Spheniscus magellanicus </i> ,at Bahia Janssen colonies, Chubut, Argentina. During the breeding season 1970-1971 the author studied the breeding of MagellanicPenguin in a nesting colony at Janssen Bay, Tombo Point, Chubut (44°11'S and 65° 33' 24" W). Additional studies were made in the breeding season 1972-1973 and 1973-1974, in the another nearby colony at Clara Point (43°53'S and 65° 15' W). Data is given on pair formation, nesting, pairing behavior, laying and incubation, mortality, molt, migration and other behaviors. The diverse methods for field information included are: observations, drawings ethogramme shedules, adopting a displays code, photographs, circular censuses, square and linear transects, as well as marking with plastic collars, paint, tags and aluminium bands