Fortune's Frolic, Haverfordwest

After thawing/drying out after helping out a sports event this morning, went for a walk with my better half and the dogs early evening at the Frolic as the rain and wind eased (it's also fairly sheltered from the N/E wind).  Lots of Swallows - over 60 - and perhaps 10 Sand Martins feeding low over the river, affording superb views from the riverside path.  2 Redshank present, and at least 30 Black-headed Gulls (1 adult, all others 2cy birds, some with hoods, most not).  Event of the walk was the sight of a Sparrowhawk swooping from the riverside trees and taking a Swallow over the river - incredible, but an unfortunate end to the Swallow's awe-inspiring migration.