I believe this is a Yellow-rumped Warbler, although I could not see the yellow rump.
Identifying marks... yellow spot on the top of its head, yellow spots in front of wing, yellow streaks in its wings.
Am I correct? If not, what additional information did you see in the bird to help ID it?
This bird was sighted in Kingsland GA (Near FL/GA border, on coast) on 2011/12/22.
Thanks for all your help!