There's the new "View Pregnant Lionesses" now when you go to your den. What if it also showed you who's the closest to being in heat though so that if you want to breed that lioness, you can prepare some feathers ahead of time to make a nest?

This would be helpful because:
Some people don't have the money to buy the automatic nest, and they probably won't have enough feathers to make one. If they had a warning ahead of time to see who goes in heat, they can prepare before they breed them.