Thank you for choosing to care for this special little guy!
I don’t have experience caring for a blind bird, though there has been someone on here in the past with a blind cockatiel - maybe another member recalls the name?
The main points I’d suggest are:
Always keep the foods and water dishes in the same place.
Once you’ve found a good arrangement, try not to change the layout of the cage; the consistency will avoid unnecessary stress. He doesn’t need a small cage, try to find a low wide cage, he will learn the layout and probably needs the space to shuffle around more than a bird who can exercise by flying around a room.
This is one occasion when I think that wing clipping is probably advisable.
Always speak when approaching him and try to use the same repeated word or short phrase to let him know what is going on e.g. “just a quick tidy, just a quick tidy”, “breakfast time!” Shaking the seed bowl, “tickle tickle?” If you’re about to touch him, “”yummy, yummy in my tummy” as a treat is coming his way etc
Hopefully other members with more personal experience will have other suggestions.
Best of luck Christine
I have no idea about the blue feet! Budgies feet are pink or grey, are they really as blue as in the photo? Very unusual but very cute too.
*I’ve just noticed that the blue of his cere seems to extend down into his beak too! Still no idea what’s going on, maybe it’s some genetic condition related to his blindness