The channel-billed cuckoo is cackling maniacally, for no reason

"Imagine if your beak suddenly had a collection of very unusual treasures - ha... hahaha! Heh, I-... I-I mean... often I'm finding random things in my wings that weren't there before, ay!"

It takes a second to check underneath its wings, then fixedly locks its eyes back on yours

"Heh ha... hahaha-! 'ee-awk, ee-awk'! H-have you ever thought of stealing a feather from a friendly bird while they're sleeping nearby? Eh, just for fun? ... or possibly their molted feathers left in the nest... hehe. O-ohh, yeah... especially collecting the feathers, skin, and fur of others..."

The cuckoo continues eerily leering at you, with its head and neck feathers in disarray

"Hahaha... others always tell me that I'm insane, b-but aren't we all a bit insane, mate?"