The Wood Grouse Dances is a sword form. Aside from the name, nothing is know about it.
In the duel between Rand al'Thor and Turak Aladon in Falme, this form was used to meet Moon on the Water. Gawyn Trakand used this form as he fought Aiel after the Battle of Dumai's Wells. Eamon Valda used this form to cut a shallow gash on Galadedrid Damodred's shoulder during thier Trial Beneath the Light.