Northern gray wolves could move off the endangered species list in as few as three years, according to Ed Bangs, wolf recovery coordinator for the U.S. Fish and Wildlife Service. Wolves introduced during the last four years in central Idaho, northwestern Montana, and Yellowstone National Park have adapted quite well to their new surroundings. Delisting could begin when there are at least 10 breeding pairs in each of the three recovery areas; there are now 12 breeding pairs in central Idaho, 10 in Yellowstone, and seven in Montana.