Bridgwater Bay is on the estuary of the River Severn, near Bridgwater in Somerset, United Kingdom at the mouth of the River Parrett. Several of the man-made drainage ditches from the Somerset Levels also drain into the bay.
At low tide extensive areas of mud flats (the Steart and the Berrow Flats) are exposed, providing important feeding and over-wintering grounds for waders (shorebirds). Consequently Bridgwater Bay is a National Nature Reserve, and is managed by English Nature.
Rarer species spotted in the area include Avocetss, Wilson's Phalarope, the White-rumped Sandpiper, Spotted Sandpiper, Montague's Harrier (in spring), Ortolan Bunting and Richard's Pipit (in autumn).
