Birds are actually amazingly intelligent!  Many species have demonstrated awareness of self, metacognitive reasoning, or the ability to build a tool just to build a better tool towards a job, things once thought exclusive to primates!  Just because the brain is small doesn't mean they're dumb, I mean, blue whales have huge brains, but they're not smarter than you and then...

Yeah, you're just here for the art, not for me to gush about how smart birds are. ;)

Nathan and Dawn-sari getting peeved off at someone who has bad misconceptions about what their bird nature means.

Drawn by Shiro