We have an igloo for the feral cats and have 2 food bowls in there. Right at the end of last summer there where 5 kittens and the momma cat. Then it got cold and we had that blizzard and then normal temps. The momma was limping during the winter. She couldn't use her back leg. A week ago I spotted her going to the igloo for food and she was not limping at all. Yeah! I wonder what happened. She jumped on the fence and headed over to the igloo. I haven't seen any of the kittens until last Wednesday. I saw 3 of them. They were also going with the momma to eat. They did hang out in my backyard for a bit and one cat jumped in my neighbors trees. I guess hunting for birds. So, at least 3 of the kittens survived the winter and so did momma. They all look good.