It's even weirder for him, he's never seen a peacock. "Normal" Earth animals aren't much of a thing in his world. There are a few, there are far more monsters though. Hard for a lot of animals to survive outside of domestication with the monsters that run around and eat everything.

"What, are the males even more blue?" Because he thinks he'd like to see that actually. And uh... "Okay so I'm gonna go with I'm not imagining these weird mice. Right?" He has reason to believe he might be so some confirmation would be greatly appreciated.