So, the little guys are now five weeks old. They are doing really well. They eat like little monsters and are quite capable of polishing off 1/3 can each at a feed. They are slowly learning to keep themselves and each other clean though they both still smell rather strongly of cat food. Today the little girl showed she is quite a clever kitten. She was out of her cage and used an empty litter tray for its intended purpose despite the lack of litter. They have huge ears. Maybe they are some kind of strange alien glider cat.