Summer is ending, fall is on the way. Even though the days may still be warm and the landscape green, we have our calendars, our Labor Day holiday, our school schedules--event the Halloween decorations in storefronts--that signal the seasons they are a changin'. But what cues do the birds and fish of the Chesapeake have? The seasonal migrations have already begun. In this episode, John Page shares some of Mother Nature's seasonal magic.