We pay farmers or other landowners to rent their land and save them from having to destroy marginal land to make pasture or arable land for grants. This saves valuable wildlife refuges while at the same time allowing small farmers to not lose money they would otherwise have to get from government grants.
Land for wildlife requires very little skilled work. Left to its own devices, wildlife will, for the most part, sort itself out and do what’s best for any particular piece of land. What work is needed will be done by volunteers under the guidance of experienced advisors.
As a Sponsor, the land that you are contributing to will be accessible by you, and the other contributors to that specific land, but will not be publicly accessible.