Brief SummaryRead full entry BiologyIn contrast with the long-
distance migratory habits of most other storm petrel species,
ashy storm-petrels typically remain within the vicinity of the
breeding colonies year round (3) (6). The breeding season by
comparison with other species is also unusually protracted and
asynchronous, occurring from February through to October, with
some chicks fledging while others are barely hatching (2) (3).
The basic nests, which comprise little, if any, supplementary
bedding, are made in cavities within rock crevices (3) (6). A
single egg is incubated by both parents for approximately 45
days before hatching. Under the cover and relative safety of
night, the adults journey to and from the nest on foraging bouts
(3). Small fish, squid and crustaceans form the bulk of the ashy
storm-petrel's diet. It feeds either by resting on the surface
and tearing flesh from larger prey or by hovering near the
surface and using its bill to catch smaller prey such as
crustaceans. The growing chicks