identity of the parent. 302. Rock Ptarmigan Three rock ptarmigans were flushed from the crags on the summit of a mountain, 2725 feet on July 30. The north side of the summit broke off in a ragged cliff 200 or 300 feet high and the ptarmigan were lying in the shade on some small weather covered ledges near the top. I had crawled down away when one trotted out on a rock that jutted out about 25 feet below me. The grey feathers on the bird's back blended with such harmony with the rock that lead it remained motionless I would not have seen it. I shot this one and at the report two more jumped up and dropped off the cliff and I got another one as it went. The one that got away had conspicuous white wing feathers when flying and evidently was minus a tail as I couldn't see any. After some considerable difficulty I secured the two birds from a 20 ft. snowbank