Rachel, my wife's Blue and Gold Macaw, has been going through terrible twos for the last few years. This is the adolescent period where much changes in a parrot's life. It grows up from being a naive baby to an independent adult. Most parrot owners are quite surprised by the changes that happen when the parrot stops being cooperative during this stage.
The age at which adolescence hits will vary by species. Roughly speaking it's around 1-3 years old in the small parrots, 2-4 in the medium, and about 3-6 years old in the large ones. During this period, the parrot's behavior can change unexpectedly. The bird will be more testing, bold, fearful, and all around cranky. Allegiances with other birds and humans can also become reversed. It's an all around jumbled, confusing, unpredictable, and unpleasant experience.
The once sweet baby now bites the hand that feeds. It might prefer someone it didn't like before or seem all around intent to hunker down in the cage and not even come out. When asked to step up, the bird runs away, bites, or just flat out ignores so what to do?
Predicting that Rachel will go through this, I began preemptive training early to help combat the worse of the symptoms of parrot adolescence. I trained Rachel to step-up using clicker and target stick, taming, harness, and some tricks beforehand. But as the age started to come, Rachel's behavior was still in a slow decline. It is difficult to realize an imperceptible downward slippery slope until it jumps out and bites you. Sometimes literally.
My wife Marianna, who raised Rachel since she was a baby, learned about parrot adolescence the hard way. It wasn't until she got bit by the baby she raised that she got a full grasp of what the "terrible" in terrible-twos means. She actually got to a point where she was uneasy around Rachel because the bites seemed to be random and unexpected. So, to help her out, I decided to do some step up re-training with Rachel to get her to be more reliable at stepping up and off again.
Rachel already knew exactly how to step-up from previous training so it was more of a matter of rekindling motivation for stepping up and lots of practice. It seems strange having to go back to such basics with a parrot that knows complex tricks. But, when hormones are causing the bird to be edgy and bite, it's what you gotta do.
If Rachel forgot how to step up entirely or would entirely refuse to, I would start the initial step-up training all over again from scratch. However, since we caught it in time while she was still stepping up but not as reliably, it was a much easier fix. I just literally went to giving Rachel a food treat every single time she would step up. She got back into it quickly once she realized she was getting food for such easy stuff.
Normally we begin to take step-up for granted because the parrot is usually reinforced in other ways for participating. For example, step-up and you get to come out of cage. Step up and I'll give you attention. Step up and get a head scratch. Step up so you could do a trick and earn a treat. There is usually a subtle bit of positive reinforcement on an intermittent reinforcement schedule built into the parrot keeping lifestyle that I share. However, when the biological changes that the parrot is going through cause it to suddenly dislike things it normally likes and people it normally trusts, you have to go back to much more basic operant conditioning to remind it what to do.
This came as no shock to me as I had already gone through the same with Kili, Truman, and countless bird owners I have coached. However, it always pins you harder when you were the one that raised your bird and you second guess yourself. This is why a clear mind, good attitude, right approach, and persistence really matter. It's all an uphill battle while slowly slipping downhill when the bird is going through this. With good training and the time for the bird to grow out of the age, everything will settle in place.