Casey Helton · CC BY-SA 4.0 · Image source

Quick facts

Weight4 kg
Eggs2 eggs
Incubation24–25 days
Fledging70–77 days
MigrationPartialMigratory
Breeding seasonMay–July
Common in IcelandYes
Breeds in IcelandYes
Conservation statusAlgengur farfugl
Best timeSummer

About Great Northern Diver

The great northern diver is a large and powerful diving bird found on lakes and along Icelandic coasts. It is recognized by its strong build and heavy bill. The species often appears calm and dignified.

Its diet consists mainly of fish caught by diving. Great northern divers breed on northern lakes and are mainly seen in Iceland during migration. They are impressive and memorable birds.

Habitat

Lakes, fjords, and coastal waters

Diet

Fish and other aquatic animals.

Nesting habitat

Large, deep freshwater lakes.

Identification

A large powerful loon. In breeding plumage it has striking black-and-white patterning and a glossy black head.

Distribution

Breeds on large clear lakes, particularly in highland and heathland areas.

Interesting facts

The great northern diver is one of the most skilled diving birds.
SourceLast verified: 08/09/2026