Family Petrels, Shearwaters (Procellariidae)
Vulnerable
Masatierra Petrel (Pterodroma defilippiana)
Taxonomy
French: Pétrel de De Filippi German: Juan-Fernandez-Sturmvogel Spanish: Petrel chileno
Other common names:
De Filippi's Petrel
Taxonomy:
Aestrelata defilippiana
Giglioli and Salvadori
, 1869,off coast between Callao, Peru, and Valparaíso, Chile
.Descriptive notes
c. 26 cm; 143–175 g; wingspan c. 66 cm. Small grey-and-white gadfly petrel with distinct dark M across upperwings and mostly white underwing. Feathers of forehead... read more
Voice
Apparently unknown.
Habitat
Marine and probably pelagic. Breeds on islands, occupying sheltered cliff ledges, crevices and... read more
Food and feeding
Very few data available, but stomach contents included squid 8–10 cm long and small fish, while sea skaters (Halobates) have... read more
Breeding
Poorly known. Returns to colonies in Jun, eggs Jul–Sept, chicks Oct, but also reported in Feb, although most birds probably fledge in... read more
Movements
Little known, but apparently relatively sedentary. Some dispersal N in zone of Humboldt Current,... read more
Status and conservation
VULNERABLE. Total population estimated at few hundreds, perhaps thousands of birds, with maximum estimate of perhaps 20,000 birds; Santa Clara, in Juan Fernández... read more
Formerly treated as subspecies of P. cookii. Forms part of assemblage often referred to as subgenus Cookilaria. Monotypic.