Type of Document:
Audubon Canyon Ranch has monitored shorebird use
on Tomales Bay since 1989. After the levees
in the Giacomini restoration area were breeched
last October, we expanded our shorebird count
areas to include the newly restored Giacomini Wetlands. As most of the shorebird use in the bay is
by winter residents, ACR’s monitoring program fo
cuses on obtaining intensive estimates of winter
shorebird abundance. ACR also tracks shorebir
d abundances during fall and spring migration
periods, although the dynamic pace of migration leads to considerable variation in the number of
shorebirds recorded. Long-term monitoring may
reveal changes in the value of the Giacomini
Wetlands to shorebirds during migr
ation as well as during winter.
Condeso, T. E., and J. P. Kelly. 2010. Update on shorebird use of the newly restored Giacomini wetlands: report prepared for the Point Reyes National Seashore. ACR Tech. Rpt. 89-4-5. Audubon Canyon Ranch Cypress Grove Research Center, P.O. Box 808, Marshall, CA 94940.