IN NUMBERS

50,000

pairs of tawny owls live in the UK, down 30 per cent in 25 years. Take part in the Tawny Owl Calling Survey if you hear one between now and March 2019.

47

is the number of years that Moby – the oldest captive dolphin – was held in captivity before dying in Nuremberg Zoo in Germany.

12.5m

ducks, geese and swans will be arriving this autumn to spend the winter in the UK, according to the British Trust for Ornithology.