Birdfair 2020 will not take place at Rutland Water this year after organisers decide to cancel it because of the coronavirus pandemic
Organisers have cancelled one of the biggest events in Rutland's calendar.
Birdfair 2020 will not be going ahead in August as a result of the coronavirus pandemic.
The event has been running for 31 years and raised more than £5m for environmental projects in that time.
Despite plans being well underway, organisers felt it would be too risky to continue with this year's fair.
A spokesman said: " Even if public gatherings were to be given permission to go ahead later in the summer, we do not feel we could maintain our duty of care during this covid-19 crisis, and delaying our decision further would only increase costs which would be difficult for Leicestershire and Rutland Wildlife Trust to bear."
Event organisers are looking at ways to hold a digital birdfair this summer, which could include online speakers and discussions.
The spokesman said: "We are determined that we will be back for Birdfair 2021.
"We are already planning a new direction for the event, offering different ways of exploring how they can engage with wildlife and nature conservation, within the UK and worldwide."