There were a few hundred herring and black-headed gulls over the sand dunes at the back of the Visitor Centre. A separate flock of well over a thousand gulls including great black backed, lessers and black headed were above the saltmarshes up towards the Clettwr. The waters of the estuary itself and exposed sandbanks were covered with well over three hundred swallows and sand martins. Interestingly I didn't see any house martins. A few curlew, egrets and the like were pottering along the Leri banks towards the boatyard.
Dave Thomas