IUCN threat status:

Data Deficient (DD)

Distribution

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Range Description

Oceanodroma hornbyi has been observed in thousands in the eastern Pacific Ocean, along the coast of Peru and Chile (Carboneras 1992c). Data on overall numbers and trends are lacking, and the breeding grounds have never been found (Carboneras 1992c, Brooke 1999, 2000). At-sea distribution and observations of grounded birds indicate that it nests between 20° and 25°S in Chile and perhaps north into Peru (Brooke 1999). Birds may breed on offshore islands or mainland cliffs, but the coast of north Chile is distinctly bereft of islands and the cliffs are largely devoid of deep rocky crevices or soil in which petrels might burrow (Brooke 1999). It is most likely to nest in the Atacama Desert, and there are reports of mummified adults and fledglings found up to 50 km inland and 1,500 m above sea level (Tobias et al. 2006).

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Source: IUCN

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