Male eclectus chest lump.
My 12 month old male eclectus parrot has developed a sack-like lump on his breast. It's quite large, and I only noticed it today when he was in the shower with me (this is only a rare occurrence, because he's quite demanding and it uses a lot of water). I can palpate it and it doesn't cause him pain, and his behaviour hasn't changed much at all.
He's slightly more unbalanced, and is a little easier to startle. It is very soft and squishy to touch, and about two centimeters in height. There are normal feathers growing over it, and it's not immediately noticable if you're just looking at him. I just want to know what it might be, and if it's fixable through diet change, or change of environment. He also has a few blue feathers across his tummy and chest, which may be of concern.
Any help at all would be appreciated!