Our temperate winter climate is not only appealing to the estimated 39 million people that reside in California; it is also the perfect habitat for the approximately 6 million ducks and geese that migrate south in the fall and winter. This migration of waterfowl follows the “Pacific Flyway” which traverses Alaska to the southern tip of Chile. In addition to the birds, any diseases they may be infected with, including viruses, migrate south in the fall and north in the spring with them. One of the viruses that are endemic in waterfowl is Avian Influenza (AI). Unfortunately for our chickens