Parrots can develop fear if hands pretty easy. To over come get I feed treats by hands a bunch of times a day.
I'm not a fan of clicker training. For me I say good bird instead of clicker, ssn thing, easier to to do. You can start by saying good bird everytime you hand feed a treat, as soon as they touch the treat say good bird.
If he is biting the stick, you've rushed him, andvir forcing him, and haven't done the positive association with the stick. I would restart. When he see the stick he gets a treat, when he comes near the stick he gets a treat. When he touches but not bites the stick he gets a treat, touch with beak us ok. If you are sticking the stick inside the the cage, then he is biting it because it's inside the cage. You need to hsv s perch in the door do when it swings open the perch is outside if the cage. Or you need a perch just outside of the door on the outside of cage. And teach him to go to that spot before you work on step up.
Birfsvresd your body language, pupils, they are very good at this. So you need to be very positive , relaxed, when you work with me them. If you get frustrated, nervous, stop, get yourself in a good head space. Also Quakers are very smart, but they don't like getting bossed around and told over and over to step up. They get bored with the gst pretty quickly. To keep them motivated you got make a big deal about how happy you are, and have yummy snack treat. When he steps up praise treat, happy party dance, then move him to s play area, when he steps to that new play area perch praise treat happy dance, let him hang out then after several minutes have him step and praise treat happy dance take him to a new place.
For me and all the parrots I've worked with, it took a few trys, then they got it, we moved on, I didn't msk them repeat over and over. Instead I show them that step up leads to fun stuff. Also o allow refusal , if some reason one of my birds isn't feeling like it, I allow them that choice. Then I come back s little later. It's beyond rare for me to have a refusal at all. It's not forcing them to step up it's asking them. You are not going to train them like a dog. It's more like asking an intelligent being to work with you, and giving them tools that make life with you easier on them. You can teach tricks and a lot of things, but it's becy they are smart and want to play and are motivated by positive. I'm trying to get across that they aren't like any other creatures humans interact with. They are living dinosaurs, billions of years of different/ divergent evolution than the rest of life. They have ingrained instincts, and an amazing intelligence. The more I learn, the more science I read on them , the more I am amazed by our wonderful parrots.
I and many if our members look at bites as our fault, never the parrots fault. We are misunderstanding and pushing them .
If you work from home that mindset , it helps you fix the problems quickly.
At the top of the Amazon forum is a blue sticky thread label I Love Amazon. It's worthy read , lots if insight on parrots, yes Amazon have their own unique quirks, but most all of that thread I found helpful with my quakers.
Also under general Parrot forum I have a thread called Ornithology, lots if great stuff in that thread, page 10 I have lots if links on behavior. On page 2 I hsv a link on stress in parrots, that is a fantastic article, regardless if if you think your parrot is stressed. It talks about rituals, abrcdo many great things , the author understands parrots very well.
I hope done if this helps you

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