I'm sorry but if you think your birds understand you apologizing to them but don't understand punishment you are certifiable. The bird doesnt understand punishment OR apologies.
And I didn't say you should use ceaser's methods on birds. I said that those of us who are used to redirecting larger animals, example: dogs, sometimes have the knee jerk reaction to tap an animal on the nose when they're being bitten.
Had you read my posts you would have seen that.

This is the reason why I don't frequent this board. There are communities out there where people help each other with their problems without judging and for some reason, no matter how this community evolves, with the exception of a very few people, this has never been one of those communities. This is the place where people post proud pictures of their brand new pets and automatically get 'OMG that cage is way too small, what were you thinking? How horrible are you?' or ask questions about advice gotten from pet stores and the answer is 'How dumb are you? you must be a child believing them.' Now we have an accidental instinctual reaction that caused a problem and REMORSE (the key sign that anger management isn't necessary) and out of three pages of posts 4 of the posters have been attempting to help.