A trip to the northern shore of the Thames at Tilbury, where Paul has been surveying the winter high tide roosts was so unlike birding in Sussex. As the tide came in the wintering waders were pushed closer together until the mud disappeared.
At least 670 Avocets, a thousand or more Dunlin plus grey Plover and Shelduck squeezed together.
Then the Avocets took flight once the mud was flooded.
An amazing sight.
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