White-billed Diver (Gavia adamsii)
Images of a bird in Lincolnshire, UK.

Black-throated Diver (Gavia arctica)
Video, ID, and European range.

Arctic Loon (Gavia arctica)
Habits, breeding, migration, and distribution. Includes a photo.

Common Loon (Gavia immer)
Describes the appearance of this bird in breeding plumage and winter plumage. Includes facts about its diet and nesting.

Yellow-billed Loon (Gavia adamsii)
Image, taxonomy chart, identification tips, and facts about this species' breeding.

Pacific Loon (Gavia pacifica)
Species account describes this bird's identifying traits, nesting, diet, and taxonomy.

Arctic Loon (Gavia arctica)
Images of this species in Japan.

Common Loon (Gavia immer)
Photo, range maps, and facts on this bird's habitat, nesting, and behavior.

Gavia pacifica (Pacific Loon)
Scientific classification, food habits, behavior, and habitat of this species.

Gavia stellata (Red-Throated Loon)
Taxonomy, distribution, physical characteristics, and natural history of this bird.