United States v. Park, 536 F.3d 1058 (9th Cir. 2008)

(plaintiff owns and operates dog kennel on property subject to a scenic easement granted to the United States, which prohibits commercial activity but permits livestock farming; legal question involves whether dogs are "livestock"; term “livestock” ambiguous and much broader than traditional categories of horses, cattle, sheep and pigs such that summary judgment precluded).