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Procellariiformes > Procellariidae

Masatierra Petrel

Pterodroma defilippiana

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Identification

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Small but rather stocky and stout-billed petrel of subtropical eastern Pacific and Humboldt Current; not seen from mainland. One of several similar species, Masatierra is best identified by gray head and collar at sides of neck, rather stout bill, and plain grayish tail without a black tip. Much smaller than Juan Fernandez Petrel with quick wheeling flight unlike more easy and less hurried-looking flight of Juan. Also compare with Stejneger’s and Cook’s Petrels.

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Masatierra Petrel

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