White-tailed ptarmigan cover. The white-tailed ptarmigan was introduced into the Sierra Nevada of California, Wallowa Mountains in Oregon, and Uinta Mountains of Utah in the 1970s. It may have been native here during the early Pleistocene but became locally extinct due to climate changes with greater snow-cover in spring impacting on its breeding season. Alternatively, it may have been unable to colonize the Sierra Nevada because of the barriers provided by the Columbia River and the Great Basin, and the low altitudes of the intervening South Cascades. This herbivorous bird's diet varies seasonally. Nitrogen-rich snow buttercup leaves are favored in the spring
Ptarmigan (sternwheeler) piper, and lifted him unharmed over to the foredeck of "Ptarmigan" while the piper reportedly never missed a note. "Ptarmigan" passed "Gian" and thereafter Cantlie steered clear of the big steamer. "Ptarmigan" was dismantled in 1909. "Ptarmigan"'s engines, which had been under water at least twice when the vessels they powered sank (once with "Ptarmigan", once with the first "Duchess") were installed in another vessel, the "Nowitka". Ptarmigan (sternwheeler) Ptarmigan was a sternwheel steamboat that operated in British Columbia on the Columbia River from 1903 to 1909. "Ptarmigan" was built at Golden, BC and was the last vessel built for