For more information about Oystercatchers: https://www.rspb.org.uk/birds-and-wildlife/wildlife-guides/bird-a-z/oystercatcher/
Around Waldringfield, they can be seen up and down the river. They especially like to nest of the roofs of houses around the quay. They can be quite territorial in the nesting season and very protective of their young. They will mob any threats they see including drones and can be very vocal.