handling/taming

Hi,
i am new to this forum but am after some help/advise.
I have recently brought a o/w amazon, he is nearly a year old. he was parent reared then the lady i got him from had him from weaning. He has lived with her up until i got him 4 days ago. she rehomed him to us a he became very noisey as she wasnt home much and i am home all day. When we got him he would come to cage when we said tickles and drop his head for a tickle, i leave his cage door open all day when i am in here with him, up until yesterday he used to stay still when we approached him and said tickles and again he would drop his head for a tickle. But i have noticed today when i wanted to begin training with him, he runs to the back of the cage (ontop of cage or when he is in the cage) and if i try to storoke him sayng tickles he like grunts. i have been sitting next to cage talking to him ect, he even came down his cage last night to get a treat for me. just dont know how to get his trust back so we can work together at him being alot tamer.
He doesnt bite if you go near him he just runs away,
any help suggestions would be greatly appreciated.
Many thanks char

It is going to take several weeks to a few months for you bird to feel comfortable in his new surroundings. Please be patient and do not try to force anything. We have lots of good threads on bonding with your bird.

For only having your bird for a few days, it is pretty great that he even let you scratch his head at all. I would take that as a very good sign that he will be easy to socialize once he is really acclimated to his new surroundings. Make sure his cage is up against at least one wall so he doesn't feel exposed and vulnerable. Approach him slowly and speak to him softly. Let him watch you and get used to you and your routine; he will calm down and gain your trust as long as you don't throw any curve balls his way but it might take weeks and there will be setbacks. Just remember, being suspicious and reactive is what saves a bird's life when they are out in the natural world. I have had my Yellow Nape for years, but if I bring an unfamiliar item into my house, she can still freeze up and stare at it until she understands that it isn't a threat to her. This defensive behavior doesn't go away in captive birds and being in a new, unfamiliar home will make the little guy more nervous until he knows you are really his friend.