Tweet of the Day is a series of fascinating stories about our British birds inspired by their calls and songs.
Steve Backshall presents the sandwich tern. Sandwich terns are the UK's largest breeding terns and have shaggy black crests and a black bill with a yellow tip. They live in colonies on shingle or sandy beaches and were first described from birds seen in Sandwich in the 1780s by William Boys, a Kentish surgeon.
Available Podcasts from Tweet of the Day
We are not the BBC, we only list available podcasts. To find out more about the programme including episodes available on BBC iPlayer, go to the Tweet of the Day webpage.