I cycled back from Bridgwater along the canal towpath and in the Creech Heathfield area(Sat ~6pm) , I noticed an excited, tight circular flock of perhaps 100 starling, wheeling around. Above them was a sparrowhawk but it didn't make an attack. Perhaps the elements of surprise or a vulnerable individual were missing or there again, she (?) had already dined out on swift, Bill. Other serendipitous delights included very large numbers of what must have been black-tailed skimmer, (all male) basking on the towpath and a Deltic diesel locomotive.