One of the longest-running animal research projects in the world is 50 today. The Bewick's swan study was started at the Wildfowl and Wetlands Trust at Slimbridge in Gloucestershire by Sir Peter Scott in 1964.
He noticed that the birds have unique bill patterns, which researchers have to learn before they can take part.
More than 9,000 different swans have been identified. The work has provided data on survival rates and meant breeding sites in Russia have been protected.
More top news
Torran MacDonald was born on board a Coastguard helicopter after his mum Alicia went into labour on the Isles of Scilly.
The announcement comes as Prime Minister Boris Johnson visits the Royal Cornwall Hospital in Truro to announce immunisation plans.
A huge barn near Tiverton has been allowed to burn to the ground to prevent large quantities of fertiliser from polluting a nearby stream.