scarlet macaw question

by heather
(south carolina)

i have a scarlet macaw who i believe is a male he is 7 yrs old and he loves wood he is very reluctant and sometimes aggressive when he dosent have his sticks he also gets this way if i dont have a stick while holding him but when i do have the stick he lets me do almost anything with him and is very loving.

i tried taking his sticks away without him knowing and the next day he looked so lost and got aggressive so i gave the sticks back. what should i do?can someone help? also sometimes when i am holding him on my leg or arms he fluffs all his feathers out and spreads his feet apart then slowly walks from side to side and bobs his head slowly up and down then sometimes bring his left wing out while doing this and before he stops he stiffens and brings his tail out to the left while his feathers slowly go back to his body. does anybody know what this means?