Have a GCC too, can confirm. Dude tore a chunk out of my cheek once and I've even had budgies draw blood before. At least with snakes the wounds tend to be little pinprick punctures (unless you're dealing with the big boys of course) and not sizable sections that are literally crushed open. Parrot bites are no joke, no matter the size.
Sent from my moto x4 using Tapatalk