I take care of eight ferals, and even though I'm in Texas, we can get some really cold temperatures.
I have asked two veterinarians about shelter for ferals, and they said that cats can handle cold temperatures as long as they have some shelter. It sounds like you've done a pretty good job...
I volunteer with a Texas-based cat rescue that often assists with TNR.
About three weeks ago, I helped a woman trap two teenage semi-ferals. Both were male littermates and about 4-5 months old. I brought them to my home and kept them in a condo until their neuter appointment.
Both got...
