Foxes can climb too. Watch this video.... So creepy that predators can do so much to get our babies and our babies do so little to protect themselves. This video only shows a fox climbing. Thought it might be helpful for people to see how well they climb.
Oh my, that is completely devastating! I am sure you probably looked around for them, but I cannot believe they could take everything. Is there any chance some escaped under something nearby?
How awful, I am sorry for your and your family's loss. My prayers are with your family. :hugs