This is a Club-Winged Manakin.
Hear that weird violin-ish noise?
He isn’t making that with his beak.
He’s making it with his feathers in a similar way as to how violins work.
Those feathers on the left are the oddly shaped ones of a manakin’s wing, while the set on the right are the corresponding feathers of a typial bird.
Want to learn more about them?