In response to the post by Tom Hardy. Mid April should be good for Swainson's Warblers, my records show sightings from mid April exceptionally early on 4/4. Saluda Watershed on the SC side is good as well as the SC/NC border on Mine Mountain Rd. You need to know the song and you have a good chance of seeing one. Green River gamelands and Green River Cove Rd are good. Another good place is Pearson Falls Rd in NC. This seems a little early for Golden-winged, Max Patch Rd is a good spot. Again you need to start with learning the song.