Yosemite National Park is causing the problem. Despite the richness of high-quality habitats in Yosemite, the brown bear, California condor, and least Bell's vireo have become extinct in the park within historical time, and another 37 species currently have special status under either California or federal endangered species legislation. The most serious current threats to Yosemite's wildlife and the ecosystems they occupy include loss of a natural fire regime, exotic species, air pollution, habitat fragmentation, and climate change. On a more local basis, factors such as road kills and the availability of human food have affected some wildlife species. Yosemite National Park has
Yosemite Firefall tied a gunny sack to a long pole and dipped in "coal oil". He would light the sack and wave it as a signal that the Firefall was about to begin. Then he would kick over the campfire coals. Later, dropping the fire from there was made illegal. The park placed a warning sign which read: In 1897, before Yosemite was a National Park, the Washburn brothers, who owned the Wawona Hotel, had the Guardian of the State Grant evict James McCauley and took over his hotel at Glacier Point. They stopped the Firefalls. The following year, McCauley bought John