Yellow Worms In Bird Cage?

Brief：
OK, I have a serious problem. There are these yellowish worms in my Nandays bird cage. I have NEVER had a problem like this before. I have had my bird.. 

OK, I have a serious problem. There are these yellowish worms in my Nanday's bird cage. I have NEVER had a problem like this before. I have had my bird for over ten years and this is the first time I have seen anything like it. I don't see them inside the cage, but on his blanket.

Yesterday, I found them on his cover so I threw the cover away, outside. I scrubbed the cage, threw away the old bedding, toys and then replaced the bedding.

Today, I saw another worm on his new cover.

This is gross and totally freaking me out. Does anyone know what this could be or how to get rid of it? My poor bird can't have these worm things living by him!

Thanks so much for any help.

Are you feeding egg meal? It's like a dehydrated egg product. If so, they could be coming from that, almost like a maggot. Comes from the egg meal becoming moist and humidity helps form them, it's a parasite almost. Take your bird and give him a clean misting, take the cage and all it's content outside and rinse it out completely with a hose. Spray lysol or bleach and water mixture, douse the cage and let it sit for a while, like an hour or so it the cleaners, rinse real good before taking back inside your home. Replace any bedding materials completely. This should do it. If it's just the bird with the parasites, try to find a vet that handles various tyoes of birds. Good luck. Maybe the feed is not fresh. Normally they'd eat those worms, unless they perceive they aren't tasty.