Saving the last monarch butterflies, which fell to historically low numbers in California this winter, is the focus of a new initiative launched by Marin public land managers. The project, which received near half a million dollars from the state’s Wildlife Conservation Board last month, will restore overwintering and breeding habitat.
The species is in crisis. Declines for the eastern population—which fly east of the Rocky Mountains and spend the winter in Mexico—are 70 percent…