Crazy parrot and reptile lady here to confirm. I would much rather take a bite from a large snake any day of the week than take a bite from one of my birds. I've had to get stitches multiple times because of my little feathered assholes.
The average Green Winged Macaw can generate around 400 PSI in one bite – that’s much stronger than the average human bite!
Moluccan Cockatoo: It’s bite force suprasses even that of the Macaw, weighing in at over 500 PSI.
https://www.parrotwebsite.com/which-parrot-has-the-worst-bite/
I have been bitten by a cat that meant it and a dog that meant it. I would rather be bitten by a dog. The cat hit bone. The dog did not. The hamster bite bled profusely, but otherwise wasn't too bad. Based on the information in this comic, I am going to avoid birds.
when I was little, my dad had a parrot that can rip apart his metal cage. We have to replace his cage 2-3 times every year.