Loon
| Divers/Loons Temporal range: Early Miocene – Recent | |
|---|---|
 | |
| Clockwise from top: yellow-billed loon (G. adamsii), common loon (G. immer), black-throated loon (G. arctica), pacific loon (G. pacifica), red-throated loon (G. stellata) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Gaviiformes |
| Family: | Gaviidae Coues, 1903 |
| Genus: | Gavia Forster, 1788 |
| Type species | |
| Gavia immer | |
| Diversity | |
| 5 species | |
| Synonyms | |
|
Family-level: Genus-level: | |
Loons (North American English) or divers (British / Irish English) are a group of aquatic birds found in much of North America and northern Eurasia. All living species of loons are members of the genus Gavia, family Gaviidae, and order Gaviiformes.