Two Citizen Science Projects :-
OPAL: Nation pollination survey
http://polli-nation.co.uk/activity/survey/
This survey is listed on the FAQ information sheet for the Welsh Government Bee Friendly Action Plan.
The British Trust for Ornithology “Garden BirdWatch”
https://www.bto.org/our-science/projects/gbw
Unlike the RSPB Big Garden Birdwatch, the BTO survey is a year-round commitment. You can just record birds if you like, but in recent years the survey has been extended to include other species of particular interest to wildlife researchers, so you can also record the butterflies and bumblebees in your garden,
The BTO are currently offering FREE membership of this survey. They have already had a fantastic response with 2,500 new members, and counting. They feel that the most appropriate way to make Garden BirdWatch accessible to all is to temporarily waive the £17 subscription. Communication with these new joiners will be exclusively electronic, they are increasing the frequency of the GBW e-newsletter to help with this.