Cattle Egrets, how many.....thoughts

Putting a few more facts as they appear to a couple of thoughts already aired;

Since the 14 December there have only been reported 5/6 Cattle Egrets in UK(1/2 in Eire), 2 in Pembs, 1 in Cornwall, 1 in Oxon.(Birdguides)
The Oxon bird hasn't been seen since the 17 Dec. I'm not yet going to pour through all the dates, but there has been a movement of Cattle(& presumably Little) Egrets apparently out of the UK.

How many in moving SW, a likely direction to have briefly graced Pembs??
We know of a minimum of 2.
Clive H. thinks that he has had two different birds in the Angle area, & of Sandy Haven/Dale?
Perhaps others may subscibe to the thought that --not likely to prove -- but 3/4 passed through or are still present.
Certainly still worth looking for & describing!