The further east you go, they are called bayous. All the yankee liberals that come down call them 'wetlands'..
YOUTUBE VIDEO OF A SLOW MOVING UFO
FUZZY and a bit distant. But the movement is slightly interesting and the fade out at the end is often reported.
http://www.youtube.com/watch?v=H_ghErHHkNY&eurl=http://www.abovetopsecret.com/forum/thread343553/pg1
FWIW