Missed by half an hour

A text from BINS informing me that a Cattle Egret had been seen following a tractor which was ploughing the field on Peto's Marsh viewable from Carlton Marshes but then seen in flight by Rob Wil, Andrew  Eand Richard W at 5.20 appearing to fly towards Fisher Row saw me down there at 5.50 but no sign of the bird at all. A Chiff- Chaff present calling too.