For more information about Shelducks – https://www.rspb.org.uk/birds-and-wildlife/wildlife-guides/bird-a-z/shelduck/
Shelducks are commonly found all year round around Waldrindfield, on the marshes. This species is mainly associated with lakes and rivers in open country, breeding in rabbit burrows, tree holes, haystacks or similar. They will hen walk quite a distance back to water when old enough to walk. The young will dive under water to avoid predators and the adults will fly away from them to act as a decoy.