About a week and a half ago I noticed an injured squirrel in the enclosed garden behind my house where I feed some squirrels. He is missing his entire tail, his left hind leg appears to be broken and his left front paw is also injured. He is able to use the front paw somewhat to eat small nuts but I don't think he can put much weight on it. There are about 6 or 7 other squirrels that come to feed in the garden but the injured one has to wait until they are finished, hiding behind a flower pot, before he can come out and eat. I've seen him almost every day now and he does seem to be able to get around but this is absolutely heart breaking. I can see an area of pink skin on the broken hind leg but I don't see any blood or oozing areas. It almost looks like this happened a while ago and he's been able to make the best of it. When he hears a loud noise or sees someone walking he "runs" off, hobbling on his two good legs and using the left paw as much as he can. I have no idea if he can climb trees or where he goes when he is not in the garden. Once when I watched him run away he fell over on his bad side but got right up and continued "running". I am putting out lots of corn, peanuts and sunflower seeds plus pans of water so he will have food easily accessible. I don't know what to do and could really use some advice here. If I were to try and catch him and succeed what are the chances for treating his injuries? More trauma for the squirrel with a not so hopeful outcome? Does it make sense to try and catch him only to have a vet put him to sleep? Is he better off trying to survive on his own and letting nature take it's course or should I try and catch him and try and get him some help. I understand older wild squirrels do not do well in captivity. Looking ahead, how will he survive the winter if he makes it that long? This is very upsetting and I want to try and help this squirrel.