why does my cockertial act aggre..

Brief：
my cockertial is aggresive to me when i go to him in his cage but when hes out he will come to and let me stroke him and is as nice as pie, why is thi.. 

my cockertial is aggresive to me when i go to him in his cage but when hes out he will come to and let me stroke him and is as nice as pie, why is this, anyone know?

This is a territorial issue. you are invading its personal space and also if you think about this, if you were in a confined space and someone put their hand in to get you, you would feel incredibly threatened. He/she is protecting itself its a self defense mechanism. Once out he/she is fine as it knows it can escape at any time as it is not in a confined area. Spend time stood by the cage, talking to it, give it a treat when you put your hand in there instead of trying to touch it, just pop the treat inside the cage and then take your hand out, after some time he will associate the hand with good things and will no longer see you as a threat.this is a time and patience operation but one well worth the effort. sounds like he might be a she! the girly ones like to protect their environment i used to have a lutino one i thought was a boy who acted the same but i later found out he was a she! you are invading his personal space. Go sit in a cage for days on end and see how u react to those on the outside. Now u no why the caged bird sings.. Maybe it wood be a better idea to get a stand for him he just likes being out of his cage. I know I woodnt like to be caged up he want's out He just doesn't want a cage! cos he hates being in a cage.birds should be free to fly around and not in cages Whilst in his cage, your bird feels either 'trapped' or 'bored'.