And you base this claim on....?
"(c) In August 1994 the BLM & FWS illegally began building a fence around the Hammonds water source. Owning the water rights and knowing that their cattle relied on that water source daily the Hammonds tried to stop the building of the fence. The BLM & FWS called the Harney County Sheriff department and had Dwight Hammond (Father) arrested and charged with "disturbing and interfering with" federal officials or federal contractors (two counts, each a felony). He spent one night in the Deschutes County Jail in Bend, and a second night behind bars in Portland before he was hauled before a federal magistrate and released without bail. A hearing on the charges was postponed and the federal judge never set another date.
(d) The FWS also began restricting access to upper pieces of the Hammond's private property. In order to get to the upper part of the Hammond's ranch they had to go on a road that went through the Malhuer Wildlife Refuge. The FWS began barricading the road and threatening the Hammonds if they drove through it. The Hammonds removed the barricades and gates and continued to use their right of access. The road was proven later to be owned by the County of Harney. This further enraged the BLM & FWS.
(e) Shortly after the road & water disputes, the BLM & FWS arbitrarily revoked the Hammond's upper grazing permit without any given cause, court proceeding or court ruling. As a traditional "fence out state" Oregon requires no obligation on the part of an owner to keep his or her livestock within a fence or to maintain control over the movement of the livestock. The Hammonds intended to still use their private property for grazing. However, they were informed that a federal judge ruled, in a federal court, that the federal government did not have to observe the Oregon fence out law. "Those laws are for the people, not for them."
(f) The Hammonds were forced to either build and maintain miles of fences or be restricted from the use of their private property. Cutting their ranch in almost half, they could not afford to fence the land, so the cattle were removed...." More at source.