Small seabird (L 32 cm). It was first discovered in 1903. The movements of the species outside the breeding season are completely unknown. At sea, birds are seen no closer than about 3-5 km to the shores during the day, coming to land only at night. Feeds on small fish, squid and crustaceans. The species is sedentary.
Reasons for the need for protection/inclusion in annex I
The species is endemic of Madeira. Today, the current consensus of opinion is that there are 30 nesting pairs. Trends for the 1970-1990 period are unknown, but numbers have declined since 1990. The species is listed as Globally Threatened because of its extremely small world popualtion size. It is currently threatened by the loss of nesting habitat caused by overgrazing and by predation from black rats and feral cats.
yellow = summer visitor
green = resident
blue = winter visitor
20 / 30 pairs
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