It is supposed to get into the teens tonight, so I went to the hardware store and bought some moisture barrier. I just finished wrapping the upper level of the cage where Buzzby is now living. I tried insulating with hay, but it seemed to scare him, so I had to do something else. Even standing inside the cage now, I can feel it is a lot warmer than it was. He still has air coming in from the bottom, but where he is sleeping now, there is an nice layer of warmth. I am also feeding him chicken broth warmed up and warmed canned cat food. He is doing quite well and I picked him up today and nestled him in my arms briefly. Then I put him down and gave him a wormer pill.
Cole is sniffling, so I have isolated him back upstairs. I am going to make a poster after the holiday and see if I can find him a good home. He seems so overwhelmed by the other cats, although he gets along with all of them except for Prowler.