Volunteers urged to listen for owls
Volunteers are being sought to spend time listening out for the "twit-twoo" of tawny owls to help monitor how the birds are faring.
The British Trust for Ornithology (BTO) is concerned that the species may be vanishing from towns and cities.
As the nocturnal birds are difficult to monitor, the trust is running a tawny owl calling survey to monitor their presence through the sound of their calls.
Members of the public are being asked to spend 20 minutes on one evening a week lis...