In Capture Wild> Pets, I can't click on the hill or the den on the mountain where the flying pets may stop by. Why can't I click??!! I can click to place different catchers in the big field, heart of the forest, big tree and others. But I can't click to place any catcher on the mountain-den for flying pets and the hill.

You need to craft (or buy) climbing gear for the cave, and boat for the island.

Thanks!