Useful links for insect and spider identification:
Bees, Wasps and Ants Recording Society – https://bwars.com/
The Sawflies of Britain and Ireland – https://www.sawflies.org.uk/resources/
UK Butterflies – https://ukbutterflies.co.uk/index.php
British Bugs: An online identification guide to UK hemiptera – https://www.britishbugs.org.uk/index.html
How to identify common British aphids – https://influentialpoints.com/Gallery/Identify_common_aphids.htm
British leafminers – http://www.leafmines.co.uk/index.htm
British Naturalists’ Association : ID Guides – https://bna-naturalists.org/id-guides/
The Wildlife Trusts : Bedfordshire, Cambridgeshire, Northamptonshire (for Orthoptera) – https://www.wildlifebcn.org/sites/default/files/2018-06/Orthoptera%20keys%20v2.1%202016.pdf
Useful links for tree, flower and fungi identification:
The Woodland Trust – https://www.woodlandtrust.org.uk/
Wildflowers – https://wildflowerfinder.org.uk/
Brambles of the British Isles – https://www.jnecology.uk/rubus/index.html
Other useful links:
NatureSpot – https://www.naturespot.org/
Norfolk Moths – https://norfolkmoths.co.uk/
The British Plant Gall Society – https://www.britishplantgallsociety.org/
Butterfly Conservation – https://butterfly-conservation.org/
Reference books:
Falk, S. (2015). Field Guide to the Bees of Great Britain and Ireland. Bloomsbury Wildlife.