Plans submitted by Idaho, Montana and Wyoming indicate the states will likely maintain between 900 and 1,250 wolves for the foreseeable future, federal officials said.

Meanwhile, wildlife agencies in the three states have already begun crafting rules for wolf hunts. Officials say the hunts will be similar to those for other big game species such as mountain lions and black bears.

The federal government announced Thursday that wolves will be removed from the endangered species list. An estimated 1,500 wolves now roam Wyoming, Idaho and Montana.

In Montana, state wildlife commissioners this week adopted regulations for a hunt to begin this fall. Idaho also is eyeing a fall hunt, and Wyoming plans to complete its plans in the next few months.

Limits on how many wolves could be killed in each state have not been set.

Wolves have increasingly preyed on livestock as they expanded into new territories. At the same time, ranchers and wildlife agents have made more wolf kills, which are allowed under the Endangered Species Act in response to livestock conflicts.

Since the late 1980s, 724 wolves have been killed legally, and roughly the same number are estimated to have been killed illegally by poachers. Despite that, the overall population has continued to grow at the rate of 24 percent a year.

"We've been managing wolves pretty aggressively for livestock problems, but there are still a ton of wolves over a big area," said Ed Bangs, a U.S. Fish and Wildlife Service biologist who led the wolf recovery effort.

The wolf was nearly wiped out in the West through a government eradication program in the 1930s that included widespread poisoning of wolves. In the late 1980s the wolf had just 200 square miles of territory around Glacier National Park, in Montana near the Canadian border.

Wolves were listed as endangered in 1974, and the government has spent more than $27 million on recovery efforts in the Northern Rockies.

Since an initial 66 wolves were reintroduced to Yellowstone National Park and central Idaho in the mid-1990s, their population has grown rapidly. The wolf's territory now covers an estimated 113,000 square miles, Bangs said.

Public hunting could significantly decrease the size of the wolf's range. It could also reduce the chance of wolves spreading to neighboring states such as Utah, Colorado, Oregon and Washington.

Environmental groups critical of such hunts say the government should be moving in the opposite direction, restoring wolves to areas where they are not now found.

In a petition filed Wednesday with the Department of Interior, Defenders of Wildlife and the Natural Resource Defense Council argued new wolf populations should be established in Maine, New York, Oregon, Colorado, Utah, Washington and possibly New Hampshire, Texas and portions of the mid-Atlantic.

Federal officials said Thursday there were no immediate plans to reintroduce wolves into other states or regions.

An independent wolf biologist said he would be "shocked" if the wolf again ends up on the endangered list.

"The last thing any of the states want is for wolves to be re-listed by the federal government," said Daniel Pletscher, director of the University of Montana's wildlife biology program. He added that tolerance of wolves has grown immensely since the species was nearly wiped out.