Rare Sights! Flock of Goats Perch on the Tree, How Can? Make it wonder

Nature does not stop giving life inspiration. One of them is about animals. Many animal scenes are caught on camera about life and uniqueness.
Take a look at the photo above. There were several goats perched on a tree, on twigs that might be too fragile for a mouse. But how can the goats do it?
Need, shady trees to be a casual place flock of birds, but this kok actually goat ya! What a rare sight for us.