One of my little feral cats is missing, he is neutered and has been gone for 5 days. His litter mate brother is still here and seems to be looking for him also. Most always they are together and wait until the other is there before feeding. I am heart broken over this, I have searched the woods and left notes on the mail center for the condo about him being lost. Tomorrow I am going to put a note on every condo door that I can. How long is it possible for them to be away from their normal surroundings and still come home? I know I have no control over their actions I guess I just need to get some good news or support while I wait and suffer his absence. I am so attached and feel helpless at this point. Its so cold outside right now and I fear for his safety, any thoughts?