The website - http://floridabirdingtrail.com/ has tons of information on the bird species and guides to places to go birdwatching. You can pick up the guides at some state facilities or download them from the site in PDF: http://floridabirdingtrail.com/index.php/trip/trail_guides/
From the Eastern Guide (http://floridabirdingtrail.com/images/pages/EFBT.pdf):
The Nature Center at Amelia Island
This nature center provides great educational programs, including birdwatching classes and nature
adventures. Call ahead for a schedule or reservations.
Night-herons, shorebirds, painted buntings, and terns and gulls are possible sightings.
DIRECTIONS:
Located 9 mi. S of Fernandina Beach
on the E side of A1A prior to crossing the Nassau
Sound Bridge. Watch for signs directing to the
Reception Center and Village Shops, prior to security
gate. Wooden bench and totem pole mark Nature
Centers entrance.
Open 9:00 a.m. to 5:30 p.m. (904) 321-5082
www.aipfl.com
Amelia Island State Park
Worth a peek for shorebirds on the beach. From the catwalk on the
bridge over Nassau Sound, you can view sand bars and islands in
the sound and look for cormorants, pelicans and migratory shore-
birds at low tide.
DIRECTIONS: This park is on the S tip of Amelia Island, on the
E side of SR A1A.
Open 8:00 a.m. to sunset. (904) 251-2320
www.dep.state.fl.us/parks
One thing I like about the guides is that they have local sites, off the beaten path, for birdwatching. For instance, in Lakeland they list Lake Hollingsworth, and in Lake Wales, Eagle Ridge Mall gets a mention for the retention pond that attracts a lot of birds. The guides include odd places like that as well as city, county, state, and national parks, wildlife refuges, and other facilities.
New since the last time I looked, they have a Great Florida Birding and Wildlife Trail App -
http://floridabirdingtrail.com/index.php/resources/birding_resources/