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Boletín Chileno de Ornitología. Volumen 15 (2009), Número 1: 17-22

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Contribución breve
Nuevos sitios de nidificación para cuatro especies de aves marinas en la Provincia de Osorno, Centro-sur de Chile
New nesting sites for four species of seabirds in the provincia de Osorno,
south-central Chile
Jaime Cursach 1, Jonnatham Vilugrón 2, Claudio Tobar 2, Jaime Ojeda 3, Jaime Rau 2, Carlos Oyarzún 2 & Oscar Soto 4
1 Instituto de Fomento Pesquero, CTPA Putemún, Castro, Chile.
2 Laboratorio de Ecología, Depto. de Ciencias Básicas & Programa IBAM, Universidad de Los Lagos,
Casilla 933, Osorno, Chile.
3 Programa de Magíster en Ciencias, Universidad de Magallanes, Casilla 113-D, Punta Arenas, Chile.
4 Laboratorio de Oceanografía, Universidad de Los Lagos, Casilla 933, Osorno. Chile.
jcurval@gmail.com
ABSTRACT
During 2007 and 2008 we visited the islet Roca Huenteyao and the islet Pingüinos,
both located in the coast of the Osorno Province, Los Lagos Region, southern Chile. At
Huenteyao we were able to ascertain the nesting of Magellanic Penguin (Spheniscus
magellanicus) and South American Tern (Sterna hirundinacea); at Pingüinos we recorded
breeding Magellanic and Humboldt penguins (Spheniscus humboldti), Kelp Gull (Larus
dominicanus) and South American Tern. With this report islet Pingüinos becomes the second
location where a mixed colony of S. magellanicus and S. humboldti is reported in Chile.
Based on the information obtained we conclude that islet Pingüinos is currently the most
important site for breeding seabirds in the Osorno Province. Considering the scarce knowledge
on breeding sites of S. hirundinacea in Chile and the lack of formal for seabird breeding
sites in the Region we strongly recommend the expansion of the Area Marina Protegida de
Multiples Usos Lafken-Mapulahual, so as to include the islet Pingüinos.
KEY WORDS.- Nesting,
seabirds, conservation, Osorno, southern Chile.
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