A Serindipitous occurrence

On Tuesday 5th November hearing of Rob M spotting a female Serin at Corton OSW, I walked down the west side couldn't see anything in the fading light as it was about 4pm, as I walked around the east side aside from 3 Linnets, Goldfinches and Greenfinch I spotted the shape of a smaller dumpier bird with domed head and short deeply forked tail flew up and it flew to the south- east corner of the OSW, presumably to roost in the Tamarisks. The very next day I walked around around 7.50am I saw a bird fly into a bush near the north-west corner of the OSW, it looked very promising. It then with some 4 Goldfinches flew to the Rosebay Willow herb tall weed stems and was feeding it was the fine female Serin. It often spent time feeding behind the tallest stems and was obscured, after only 2 minutes for no reason the entire flock flew east towards the sewage works and the Serin wasn't seen again. About 20 minutes later Andrew E arrived, then Paul & Jane and Maurice and finally Jeremy, but to no avail.