Big diver (L 75 cm) with a powerful bill and a large head. In summer plumage characteristic, with black bill, head and neck and a broad band of white stripes on neck-side. In winter plumage very dark above contrasting sharply with white foreneck. Great Northern Divers prefer sea coast. They may, however, also occur in rivers and estuarys. The food comprises fishs, molluscs and crustaceans. Migrant.
Reasons for the need for protection/inclusion in annex
The main threat to the species is water pollution, mainly from oil, which means declining food stocks and deterioration of habitat.
yellow = summer visitor
green = resident
blue = winter visitor
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