Yes, the big bird marts in the spring and fall are always on a Sunday, and the small one in the summer is always on a Saturday. The next one is on Sunday October 18. The best time to be at the bird marts is first thing in the morning, before the best stuff is sold, so if you could manage that you would have the rest of the day to get back home (if there's enough time for that).
B, here are a couple of websites with listings of bird fairs in Florida.
http://www.exoticbirdevents.com/bird-events.htmhttp://www.suncoastexoticbirdfair.com/N ... get_3.htmlIt's possible that there might be others that aren't listed here. There's a list of bird clubs in Florida at
http://www.birdchannel.com/bird-communi ... ing.aspx#FIf you can find one that's reasonably close to your area, they might be able to tell you more about nearby events. It's common for these lists to be out of date so some of these clubs might not actually exist any more or new ones might have popped up.