Waterfowl hunting in Tomales Bay opens Saturday for the season, and two camps, one pushing for a ban on hunting, the other endorsing the state-regulated and historic pastime, are gearing up. A newly formed group, Action Tomales Bay, has argued that hunting in the 483-acre Tomales Bay Ecological Reserve disrupts the soundscape, threatens public safety and unfairly targets birds attracted to the adjoining, federally protected Giacomini Wetlands. Last week its members touted the discovery by…