Hank Eats Blanket

Remember how Hank hates that blanket I put over his cage? He yells at it, and he shrinks away from it when I pull it on or off the cage. Never before have I seen a bird with so much hate for an object that is meant to keep him warm and shield him from too much light.

Now it has come to this: he has started eating holes in the blanket.

I mean, I know he hates this thing, but I never thought it would go this far.

The thing is, do I wait until he eats more of it to give him a new one? Will he eat the new one too? Should I be worried about his vitamin intake or something?