The Western snowy plover, a tiny beach bird that weighs less than two ounces, could get stiff shoreline boundaries under a state plan introduced Monday. Dogs and kite-flying will be off-limits on 32 miles of beaches under the plan, introduced by the Oregon Parks and Recreation Department. Off-road driving is already banned at the proposed sites. The plan, submitted to the U.S. Fish and Wildlife Service, covers 32 miles of the state's 230 miles of sandy beaches. Plovers, whose numbers in Oregon were counted at 125 this year, have been listed as threatened under the Endangered Species Act since 1993. …