I agree with LabLover... If they haven't had all their shots, and at 9 weeks there's no way they have, they need to stay in your house and in your yard. Lots of love, treats, play time. If they've only recently been separated from their mom and litter they could be going thru separation anxiety, and they'll need all the reassurance you can give that this is home now, and it's a great place to be!