I have found that Coco will do her “forbidden” behaviors ( for her it is Chewing cords, or attempting to chew them) when she has decided that my set up is boring. I know this sounds counter intuitive since she HAS things to do, she simply isn’t choosing to do them…But it really seems to be about finding her play “sweet spot”. For Coco, I rearrange her maze haven, and reconfigure the Hay bungalow with the hemp ropes that I have made for her chewing.
I also may switch out some of the throw toys ( she is first a chewer…then a thrower) – a pine cone, a piece of cardboard she likes to drag around. Today, I built a little “fort” out of a blanket…for her to dig at and rearrange, with the pinecone inside, and the cardboard on top. Refused to look at it. Hops around it. However, I am leaving it there for a bit. I find Coco is “slow to warm” with toys, and needs time to check things out before she actively plays.
As for a digger, what would she do if in the wild? Is the dig box too small, does it not have enough to throw around? Is it too exposed and open? I think one of the reasons Coco loves the Hay bungalow is that it is really dark in there. She feels like she is at the end of a tunnel and is digging to get out.