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The black-throated diver.

Black-throated loon – Least Concern (IUCN 3.1) – Kingdom: Animalia – Phylum: Chordata – Class: Aves – Order: Gaviiformes – Family: Gaviidae – Genus: Gavia – Species: G. arctica – Gavia arctica (Linnaeus, 1758) – G. a. arctica – G. a. viridigularis – Range of the black-throated loon – Breeding – Non-breeding – Colymbus arcticus Linnaeus, 1758.

The black-throated diver.

Range of the black-throated loon – Breeding – Non-breeding.

The black-throated diver.

Breeding, top, and non-breeding, bottom, black-throated loons