The deeply territorial northern spotted owl has again put the brakes on development, this time in a San Geronimo Valley open space preserve. The Marin Audubon Society filed a lawsuit late last month against the Marin County Open Space District for a road and trail management plan adopted in 2014. The suit seeks to halt the implementation of the section of the plan that would legalize and improve 14,071 feet of previously unsanctioned trails and…