When do ring necks start bluffing stage?

[miami]

I have a 3 and a half month old baby ring neck bird, im just wondering, i have read a lot how they go through this "period of bad behaviour" where they bite anyone that tries to get near them. When does this bluffing age start? as some say at 6 months some say at 3 years?!

also has any owner of a IRN noticed a change in birds during this stage, if so how drastic or dramatic is the change?


and how long does it last for as i have heard a range from a month to a year?

Please help. I want to be ready for when it comes.

[Kimberly4403]

I have also heard that they start bluffing between 4 months and 1 year, I suppose it depends on the bird