The Quekett Microscopial Club – the UK's 'learned society' for everyone interested in microscopes and microscopy – is bringing its annual exhibition to Hertfordshire in October.
Normally held at the Natural History Museum in London, the exhibition features exquisite images of wildlife and the natural world that are too small to be perceived by the human eye alone.
The National Forum for Biological Recording's online conference on Thursday 6 and Friday 7 May focuses on urban wildlife recording – from birds to 'under-appreciated' groups like slugs
https://www.field-studies-council.org/shop/courses/national-forum-for-biological-recording-2021-conference/. It costs just £5 to sign up for the full programme.