We have three feral cats living outside in plastic bins we made for them. We have started to feed them two small cans each of wet cat food morning and night. We live in a cold area with temperatures at night from 0 to 10. Will the extra wet food help them while it is cold? We customarily give them dry food, but have started the wet food when it got really cold. Is this too much or Ok? They always eat the wet food right away. Thanks,