Aly, what about letting moosmom and your uncle exchange phone #s. you could tell him she is a rescue worker, she could go into the neighborhood with her girlfriend and do some searches, (that mom is not going to show up again until the kittens are older and feral-if they live) and find out where the 2 fosters are, make sure they are in good hands and even see if the people the kittens are with are going to find mom and remaining kittens. Its hard but not THAT hard, just takes being smart (check all sheds, under all porches, every nook and cranny... be aware of cat hairs caught on entrance areas, anyone leaving out dishes of food etc), and sometimes just sitting in the car with catnip on the sidewalk every 8 feet or so (at night). Finding her is doable - it takes someone creative and dedicated. Moosmom may or may not have the time. whoever took the kittens is hopefully connected to a group that has someone that is good at this. what do you think?