Mother cat will randomly take any one kitten (it's a different one EVERY time!) and hides/moves it?

Mother cats will move their kittens around if they believe that they are in danger or if there is too much light. First-time mothers are more anxious than others and their moving kittens from place to place will endanger them if they are placed in a cold location (see temperature). Your best bet is to keep mom and her kittens where they are and not create too much noise or distractions. The children should look at the kittens but should not yet handle them or make any noise near them. Mom needs to care for them free of worry.