She must need the rest, and possibly still some buns in her oven. She sounds like she would make someone a nice pet! I'm sure those other cats smell the food. Poor kitties. It's so expensive to feed a colony, though you might consider giving them dry food during the depths of winter when it's harder to hunt. I used to spend about $50 a month feeding my colony for about 5 years. It adds up. Glad you're caring for this one right now. Is her milk coming in? Or can you not get close enough to tell? And does she look visibly pregnant still? Or hard to discern?