My mom was just bitten by my neighbor's cockatoo..., hard! Does she need to go to the hospital?

Ive been bitten hundreds of times. First aid is enough.A too's bite is crushing and it will probably be pretty sore for a while .Just watch it like you would any wound and at the first sign of trouble contact a doctor. Of course if it is a worry to you you can visit the doctor. I never did but it's your mother.

PS Cockatoos dont get rabies. Just mammals do.

Cockatoos can be very aggressive so I know how easy it is to get bit. My friend's cockatoo would bite for no reason. To be safe, I'd go to a walk-in clinic just to be safe. You can never be too careful at age 86! It might get infected so get to the doctor as fast as you can.

What did she do to get on the cockatoo's nerves, and why did the owner not interpret the obvious "I'm gonna bite" warning signals?

Anyway, like said before, just basic first aid will do. There will be a nice bruise soon, if there isn't already. And next time, she needs to be more careful around the bird. Their body language is very easy to read, so it could have easily been avoided.

I would take your mom the the Hospital. You can't be sure that the Cackatoo doesn't have rabbies

If you cleaned it well an

nah...not unless the dog had rabies which i doubt it did. u kould sue though but its prolly be pointless. u wouldnt get much out of it