Tetrao
Tetrao is a genus of birds in the grouse subfamily.
Species
There are two extant species:| Image | Scientific name | Common Name | Distribution |
| Tetrao urogallus | Western capercaillie | Europe to western Russia | |
| Tetrao urogalloides | Black-billed capercaillie | eastern Russia as well as parts of northern Mongolia and China |
The fossil record of this genus is extensive: