This is a really little thing that I think would be nice:
I just noticed that if you click a hunting party you can change the selected party, but you can't deselect it.

My experience: My party had no hunts left today, so I thought I would just send five lionesses that are not in a party, but I mis-clicked and selected the party. As I said, there is no way to deselect a party, so I tried to send the party AND five lionesses, but got the message "No lionesses are eligible to hunt in this party!"
What annoys me a little is that I KNEW the party had no hunts left, but I could not help but trying to send it anyway. I wish I could just deselect it as I would do with a single lioness