Flat on his belly in a sniper position, wearing a baseball cap and a flak jacket, a protester aimed his semi-automatic rifle from the edge of an overpass and waited as a crowd below stood its ground against U.S. federal agents in the Nevada desert.

He was part of a 1,000-strong coalition of armed militiamen, cowboys on horseback, gun rights activists and others who rallied to Cliven Bundy's Bunkerville ranch, about 80 miles (130 km) northeast of Las Vegas, in a standoff with about a dozen agents from the federal Bureau of Land Management.

The rangers had rounded up hundreds of Bundy's cattle, which had been grazing illegally on federal lands for two decades. Bundy had refused to pay grazing fees, saying he did not recognize the government's authority over the land, a view that attracted vocal support from some right-wing groups.