Orrfugl, skogsfugl, Lyrurus tetrix "Black Grouse" by Alastair Rae via Flickr, Creative Commons Attribution ShareAlike.

Detaljert systematikk:

Orrfugl, skogsfugl, Lyrurus tetrix

U.art Lyrurus tetrix baikalensis (Legg til)
U.art Lyrurus tetrix britannicus (Legg til)
U.art Lyrurus tetrix fedjuschini (Legg til)
U.art Lyrurus tetrix mongolicus (Legg til)
U.art Lyrurus tetrix tetrix (Legg til)
U.art Lyrurus tetrix tschusii (Legg til)
U.art Lyrurus tetrix ussuriensis (Legg til)
U.art Lyrurus tetrix viridanus (Legg til)