The country's first bat survey has identified 12 different species in Norfolk alone.
So far this year, monitoring stations have recorded a quarter of a million bat calls in the hope of finding out more about their habitat and lifestyle.
Click below to see Kate Prout's report:
More top news
A fine and dry day, with pleasant spells of sunshine
Ipswich Town manager Mick McCarthy says that he has been impressed with trialists Giles Coke and Larsen Touré.
A woman has been telling ITV News Anglia how her dog saved her from crowbar wielding robbers who attacked her in her own home.