You really need to let family members know that it's seriously important that Yoshi and your cat aren't allowed to mix, at all. Your mother forgetting the cage door open could have ended so much worse. Have you seen any cuts or scratches on Yoshi?
Now on to the part where he sat on your finger. How comfortable is he with you, how much time do you spend with him? If you didn't force him to get on your finger and he instead chose willingly to do it, I think it is a good sign that he is becoming more comfortable with you. Where do you keep Yoshi (and his cage)? Does he have things to entertain him when you're away at work (toys, an interesting environment, a window view, etc)?
For the feathers, I believe he is just moulting. This is a normal thing that happens when birds shed their old feathers and grow new ones. In the first picture, I believe you're seeing the small 'down' feathers, these are the feathers that keep him warm. In the second picture, you're seeing his main feathers that help him with flying. It's normal. My bird room becomes covered in feathers when my two moult.
PS: when you travel for work, who looks after Yoshi? I stress about this myself, because work wants to start sending me away next year and I have no one to look after mine.
Now on to the part where he sat on your finger. How comfortable is he with you, how much time do you spend with him? If you didn't force him to get on your finger and he instead chose willingly to do it, I think it is a good sign that he is becoming more comfortable with you. Where do you keep Yoshi (and his cage)? Does he have things to entertain him when you're away at work (toys, an interesting environment, a window view, etc)?
For the feathers, I believe he is just moulting. This is a normal thing that happens when birds shed their old feathers and grow new ones. In the first picture, I believe you're seeing the small 'down' feathers, these are the feathers that keep him warm. In the second picture, you're seeing his main feathers that help him with flying. It's normal. My bird room becomes covered in feathers when my two moult.
PS: when you travel for work, who looks after Yoshi? I stress about this myself, because work wants to start sending me away next year and I have no one to look after mine.