Northern Gannet

Overview

The Northern Gannet is the largest seabird in the North Atlantic, known for its spectacular plunge-diving behavior. These birds spend the majority of their lives at sea, often traveling long distances to forage for schooling fish.

Appearance

Adults are striking, with a streamlined white body, long slender wings tipped in black, and a distinctive yellowish wash on the crown and nape. They possess a stout, pale blue-grey bill and sharp, piercing eyes. Juveniles appear quite different, starting with a dark grey-brown plumage that becomes increasingly white over a five-year period as they reach maturity.

Distribution & Habitat

This species is native to the North Atlantic, with breeding colonies established on rocky coastal cliffs and islands in Western Europe and Northeastern North America. While they are primarily pelagic, they are frequently observed near coastlines throughout the year.

Biology & Behavior

Northern Gannets are highly social birds that nest in dense colonies. They are famous for their hunting technique, where they dive from heights of up to 40 meters, hitting the water at high speeds to capture prey. They are long-lived, often reaching 16 to 24 years of age, and are known for complex, ritualized social displays among neighbors and mates.

Feeding

Their diet consists mainly of schooling fish, such as mackerel, herring, and sandeels, which they locate using excellent vision. They often forage in association with other marine predators, including cetaceans, and may occasionally feed on squid or scavenge behind commercial fishing vessels.