Answer by  
                                                                                          mammakat (11147)
                                                            
                          
                          
                                                           I don't suggest leaving her there, she is at risk of predators. I would bring the mom cat and kittens out of there into your house. This mother cat seems to need privacy. Prepare an upside down cardboard box with a towel in a quiet corner of your house. Within your cat's comfort level, start handling the kittens.