1. Adding wolves to a den should put them at the bottom
When a wolf has puppies or I move it from den to den, I really struggle to find it because it's almost always in a random place in that den!
If the position was at least predictable, it'd be easier to find them!
2. Have the ability to swap wolves either in the same den or in different dens
Swapping wolves in different dens particularly if your dens are full. Right now, with full dens, you cannot swap 2 wolves in different dens as you need to make room first.
3. Have a visible label that shows up in the den view
For me, it's more about the companions, I find it really hard to track which ones have common companions so I can swap them out when I manage to buy rarer ones for example. I've ended up putting short codes in all my wolf names which isn't pretty. It could also be good to have something like a label you can add that appears underneath the name like a tag so you can mark some wolves and easily find them later
4. Some kind of filter
Being able to show only wolves that are giving birth, need nesting, ready to breed, have no companion, are a pup/adult, have no name for example would be very useful.