We gave that young doe a nest box and a bunch of hay. She's been playing in it and created a bit of a tunnel to the back of the box. No pulled fur yet. Just a little anxious is all. I'm hoping to find a nest of baby bunnies. She's been playing in the box, but I can't tell if it's just playing or nesting. What should I look for as far as nesting behaviors? I know fur pulling it one, are there any others?