Tuesday April 8, 2014, 2:47 pm
Allan Yorkowitz to answer your question; When a mother cat has a litter outside and she moves that litter she might actually forget a kitten or two and leave them behind. My friend recently took two newborn kittens in that were found in a driveway with mother cat nowhere in site. She also had a nursing mother cat with a litter of 8 were the kittens were about 3 weeks old. The 2 newborns caught up in no time though. It is like they grow faster if they have older foster siblings.