Sorry for the late post. On 30 Dec 2005, in a flock of 23 Red Knots feeding on the beach at New Smyrna Beach, Volusia Co, FL, one bird had a yellow band, and a pale blue tag on the opposite leg, with the letters PHT on it.
Brian - I will try to forward pix if they come out ok.
R. D. Wallace
New Smyrna Beach, FL