Kelly, J. P., J. G. Evens, D. Wimpfheimer, and R. W. Stallcup. 1994. The use of aquaculture areas by wintering shorebirds at Walker Creek Delta, Tomales Bay, California. Project Report to the California Department of Fish and Game. ACR Project Report 89-9-5. Audubon Canyon Ranch, P.O. Box 808, Marshall, CA 94940.