Well, here in my town I have spoken with some animal rehabilitators (I have taken them a few trapped animals), and was told that unless they were injured they could not take them. But, they did recommend areas for some that could be released, areas that had a good source of water and food, and that were not already overcrowded with other animals. When I talked to these people there is no doubt they had much more knowledge than I did about the animals and about the laws concerning the animals. That is where I learned about being only able to release an animal on the same site or kill it, it was not allowed to be relocated.
So I feel sure the rehabilitators have better odds of their released animals surviving than individuals not trained in such matters.