Details
Morus bassanus
The northern gannet is a large seabird that feeds over the North Atlantic. Diurnal birds breed in dense colonies on cliffs and islands.
Map: Ecoregions 2017 © RESOLVE (CC BY 4.0) · Natural Earth (PD)
It uses offshore and coastal North Atlantic waters, with sea cliffs or islands for breeding. Fish-rich waters and safe nest ledges are important.
Wingspan is about 165-180 cm and weight about 2.4-3.6 kg. White plumage, black wingtips, a pale yellow head, and a long pointed bill are distinctive.
Active by day, it soars over the sea and plunge-dives from height when prey is found. Colony nests are packed close together.
It is carnivorous, feeding mainly on fish. Birds hit the water at speed and continue underwater pursuit after entry.
Pairs nest on cliff ledges or island ground and guard the egg and chick. Adults return from sea with fish for the young.
Its status is listed as Least Concern. Marine fish availability and secure colonies shape local breeding success.
