Too bad chocolate is poisonous (often fatally) for most parrot species. This would be a lot funnier if it wasn't likely that a cockatoo eating that much chocolate would endure horrible vomiting and diarrhea before succumbing to seizures and then death. Kind of like a "funny" video of someone feeding rat-poison-soaked hamburgers to a pug dog.

I think it's clear that this is a Satanic Christmas ornament. As the evergreen represents life and hope in the dark of the winter, this obviously would represent death and despair. It's probably also cursed or haunted and you most likely should get rid or it as soon as possible.