Armed protesters continue to occupy a U.S. national wildlife refuge in the western state of Oregon. Some experts say the protesters have been influenced by the extremist militia movement to fight against the federal government. The protesters moved in while the Malheur National Wildlife Refuge was closed during the New Years’ holiday. The leader of the protest is Ammon Bundy. He is a rancher from Nevada. Bundy said the occupying group has named itself Citizens for Constitutional Freedom. Bundy said he wants the government to consider claims that federal officials have mistreated local ranchers. They are also bringing attention to the case of Dwight and Steven Hammond. They are two Oregon ranchers who were found guilty of setting fires illegally on public land. The ranchers were ordered to return to prison after a judge found they had not served enough of their five-year sentence. They have since returned to prison. Bundy has been involved in standoffs with government officials before.