I swear, I lived on one of the south beaches, I'm on the cliff for now, much flatter, and these little guys and their bird variant run wild there time to time. One day I'm building and a pego comes and steals my crossbow (this was earlier in the game). I go to draw out a pike and go to hunt it but some compys decided to swarm me. Another pego comes out of no where and steals my pike and just leaves me with my pickaxe and axe to defend myself with since my creatures were on passive and it wasn't my computer so I wasn't used to the contols. At least the birds don't attack me too often anymore when I fly down. These guys still appear down there time to time.