Country parks are things that governments have to do. So is there nothing we can do ourselves? Yes, of course there is.
If you have a garden you can do many things to make it not only a pleasure for you, but a home to many kinds of wildlife, too.
It does not have to be you or wildlife. It can be both. You can have wild plants and a pond, too. (Note: a pond without a pump saves energy and the planet).