Aves > Galliformes > Phasianidae > Lagopus > Lagopus lagopus > Lagopus lagopus birulai

subspecies: Lagopus lagopus birulai (Willow Ptarmigan, )

Annotation: Not included in treatment by Howard and Moore (2003), but included in treatments by del Hoyo et al. (1992) and Clements (2000).