The knot is a medium-sized, wader a bit larger that a Dunlin {see picture 5}. They migrate to the UK in very large numbers during winter from their Arctic breeding grounds. Knots eat invertebrates, molluscs and crustaceans which they find by probing their bills in the mud and sand; special sensory organs in their bill tips help them to detect buried prey in a similar fashion to the way echolocation works in bats. For me, although not the 1st time I have seen Knots yesterday was the first time I was able to get some pictures of this bird.
UK wintering population:320,000 birds.
Continued Reflections from my World. 