IUCN threat status:

Vulnerable (VU)

Distribution

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Range Description

Pterodroma defilippiana is an east Pacific seabird, currently breeding on three or four islands off the coast of Chile. In the Des Venturadas Islands, 10,000 or more birds occurred on San Ambrosio in 1970, with an additional 150-200 pairs on San Flix. In the Juan Fernndez Islands, it has possibly been extirpated on Robinson Crusoe, and the population on Santa Clara was suggested at hundreds, possibly thousands, in 1986, but available habitat was found for only 100-200 individuals in 1991. It ranges at sea in the nearby Peru Current, south of the equator (Roberson and Bailey 1991, Spear et al. 1992).

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Source: IUCN

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