If you everwonder how you can do something to counter the Biodiversity crisis, you can, with minimum experience contribute to the documentation of biodiversity using the iNaturalist app. You don’t have to be a scientist, just an observant person with a cell phone.
I have recorded my observations of species over the past few years and even found and digitized images from 40 years ago.
If you put the word bee in the search box on that page you can see the variety of pollinators I have come across and recorded on iNaturalist .