WILLITS (AP) — In this small logging town in Northern California’s redwood country, small blue signs urging water conservation are almost everywhere you look.Just south of Willits, in one of the state’s most verdant corners, crows and other birds peck at dry ground that should be covered in water at the city’s Centennial Reservoir, which is less than a third full. The creek that feeds it has slowed to a trickle.“It’s common at this time of year for the water to be going over the cement wall right here. In fact, we’d be standing in water,” said Bruce Burton, a Willits city councilman, gesturing toward the small cement dam in the creek.