Ruddy Turnstone
Arenaria interpres

Turnstones are small waders (21-24 cm in length) that often visit the UK in the winter. They use their short bills to turn stones over to look for food (hence the name) and favour pebbly beaches. The birds in pictures 1-3 are in winter plumage - in the summer, the males have bright orange on their backs, while picture 4 is moulting into winter plumage. Turnstones are often quite tame and approachable. They occur from North and South America down to Australia through Europe, Asia and Africa.
 

1: River Exe, Topsham, Devon, 01/01/2013.
2: Selsey Bill, West Sussex, 26/09/2006.
3-4: Appledore, Devon, 20/09/2013.