WOLVES Legislators want to remove Gray wolf from endangered list. Facing extinction, the Gray wolf became protected under the Endangered Species Act in the 1970s. It was reintroduced to the northern Rockies and parts of the South-west, and the U.S. Fish and Wildlife Service had great success restoring wolves in the Rockies. The northern Rockies population of wolves has been proposed to be de-listing, but there is no doubt that they had their proposing blocked. There is a graph of minimum population count of Gray wolves within Blue Range Wolf Recovery Area. As you can see, from 1999 to 2003 the count of population soared up to 55, the next two years count a little bit shrank. In 2006 count rocket to 59, but within 3 years count collapsed as in 2005. But now the number is growing and this is the reason why wolves can be de-listed from endangered list.