Petrels and Shearwaters (Procellariidae)

Mas a Tierra Petrel (Pterodroma defilippiana) - HBW 1, p. 244

French: Pétrel de Defilippe German: Juan Fernandez Sturmvogel Spanish: Petrel Chileno
Other common names: Defilippe's Petrel

Taxonomy: Aestrelata defilippiana Giglioli and Salvadori, 1869, off coast between Callao, Peru, and Valparaíso, Chile.
Formerly placed in P. cookii. Forms part of assemblage often referred to as subgenus Cookilaria. Monotypic.

Distribution: Juan Fernández Is, San Ambrosio and San Félix Is.

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