Masatierra Petrel

Pterodroma defilippiana (Giglioli & Salvadori, 1869)

Masatierra Petrel, Pterodroma defilippiana, is a petrel of the Pacific Ocean that breeds on San Ambrosio and San Felix in the Desventuradas Islands and on Santa Clara in the Juan Fernández Islands off Chile. Outside the breeding season it ranges to coastal waters off southern Peru and northern and central Chile, and also reaches the Pitcairn group in eastern Polynesia. It is a seabird in the family Procellariidae and was first described in 1869. Its nesting sites are on cliff ledges, and it is associated with open sea and rocky shores.

Order

Procellariiformes

Family

Procellariidae — Petrels, Shearwaters, Diving Petrels

Breeding range

Pacific Ocean: San Ambrosio and San Felix (Desventuradas Is., far w of nc Chile) and Santa Clara (sw of Robinson Crusoe=Mas a Tierra, Juan Fernandez Is., far w of c Chile)

Nonbreeding range

to coastal waters of s Peru and n, c Chile and to Pitcairn group (e Polynesia)