[shf]

sorry to read about your struggles with your amazon. I went through a struggle with my new amazon sonny also similiar to yours but I definitely did not push the circumstance and not wanting to be bitten.
Please do not try to handle him yet he needs a lot of time (months) they are very slow birds to get accustomed to their surroundings. They also are very stubborn and do not like to be pushed to step up when they don't even know you.
We definitely went through a biting phase the first three-6 months it was a power struggle; sonny definitely was not trusting or loving but I learned from my experience and I would say that you are pushing your luck to be able to get a new amazon to sit on your finger and trust you the first week in a new environment.
New amazons need at least 6 months just to get accustomed to their new surroundings and amazons are very subtle birds they are very difficult to read sometimes they will look gentlle or playful when they are not.
I would suggest not to push him amazons are difficult and trust has to be earned throught time and familiarity. After about 6 months the biting, growling, nipping gradually stopped and now I can do anything with sonny. I have earned his total trust. Also look into his diet he may be deficient in nutrition, carrots are very good and fruit also. They need carrots vitamin a at least 3 times per week. IN the picture his head feathers are puffed that means he is excited (do not push or I will bite). When you can approach him with you finger very slowly and give him a verbal command step up a couple of seconds before you show him your finger and approach him with your finger very slowly it will prevent him from being startled or agressive.