To answer your questions...no, not every snake in my "area" needs rescuing. We do have wooded areas and creeks and places near here that are very safe. But in my neighborhood..the garter population has gone from having many all over my yard...to barely seeing one each year because the foxes and shrews and crow population has increased, and the snakes are being picked off. One snake I decided to try to let live in my yard a year ago...ended up getting bitten by a shrew and dying. The snake I have now seems sick...she is not doing well. It looks like she may have lost the end of her tail and may have damage to her vent. I am not going to release her until I can figure out how sick she is and if she is going to make it. If she pulls through, I will take her to a nice area near here and release her. She will not eat...she just coils up and her back end turns upside down with the cloaca prolapsed. She also looks like she has something on her...something white...she must have gotten into something, but I don't know what.