Oh only my hand was in the cage it's a liberta flight cage he was outside and I put my head down then he grabbed it but not hard it's my hands he hates.Cosmo may have felt trapped while you were in the cage, how big is your cage?..... if you had your hands and head in there it sounds like it is either a big cage or you took up a lot of his cage space and made him feel cornered or trapped. I am not telling you this was the reason- I am kinda asking if you think this possibly had anything to with you getting a bite.
Also my finger that he bite still hurts if I squeeze it that's normal right.Cosmo may have felt trapped while you were in the cage, how big is your cage?..... if you had your hands and head in there it sounds like it is either a big cage or you took up a lot of his cage space and made him feel cornered or trapped. I am not telling you this was the reason- I am kinda asking if you think this possibly had anything to with you getting a bite.
Also I know this is off topic but I bought him a foraging wheel the one that he has to spin. What treats should I put in there would almonds be a good idea.Remember, move consistently, make the experience positive, lower expectations and respect that Cosmo hates hands. Patience is your friend here. You can start by giving Cosmo a treat everytime your hand reaches toward the cage. You can rebuild lost trust, you can help Cosmo overcome his hatred of your hands, but you need to get into Cosmo's perspective.
Almonds are a fine idea. You could even add a few things for interest, birds do love variety. Any reward works so long as Cosmo has fun. Even small wooden blocks that he can work out of the toy just to toss on the ground can bring joy to intelligent little Cosmo.Also I know this is off topic but I bought him a foraging wheel the one that he has to spin. What treats should I put in there would almonds be a good idea.
Don't squeeze it! All broken healing skin has some discomfort- your nerves tell you something is wrong there so you do not do things to make it worse like squeeze itAlso my finger that he bite still hurts if I squeeze it that's normal right.