Estuarial Thames
The River is wide at this part of the Thames which runs from Greenwich to the Sea at Southend. The area around this part of the Thames is mainly salt marshes & mud flats.

Birds that you may see here include:
Heron
Herons are huge birds, standing almost a metre tall on long, slim legs. In flight they tuck their heads into their bodies but standing, their elegant, kinked necks give them plenty of reach when they dart forward to snatch fish or other food with their pointed beaks.
Wigeon
The wigeon is a medium-sized duck with a round head and small bill. The head and neck of the male are chestnut, with a yellow forehead, pink breast and grey body.

Bird pictures courtesy of Mike Langman