Green Cheek Mutation - Developing blue stripes?!

[Squeeing_Onion]

I have a vet appointment on the 28th for both my birds, the soonest i could get them in short of an emergency.
This recieved zero response on another bird group i’m in on Facebook- anyone here ever seen a parrot’s feathers gain a gorgeous yet alarming pattern of rippled stripes? They appeared this month with Bongo’s molt, along with loads of vibrant colors in her feathers. She’s never been more rainbowy, glossy feathered, shimmering holographic colors.

I am familiar with stress bars, the black discoloration. Bongo does have one single feather with a few black marks, the rest of them are all normal and vibrant - with the exception of the new stripes.

I can’t easily capture it in my ipad camera, its very subtle unless the light catches. She has some wing joint feathers that shownit incredibly obviously because it’s blue stripes on yellow / pale green.

It’s gorgeous, but I’m worried it could be a sign of a health or diet issue? Hoping to have some input before the appointment or know if I need to rush her in earlier.

Bongo is a yellow sided green cheek conure, who has gone from a very drab, ratty feathered parrot with malnutrtiion to a shimmering gem of rainbow feathers, and she’s a little over seven years old now. (Might be eight, I always forget the exact timeline but I have her hatchdate year written down in her file xD)

 

[wrench13]

I kinda see what you might be talking about in the first 2 pics. No ideas on what causes that or what it means though. I;ve not seen that before.

 

[Laurasea]

This is normal. Gcc have some half blue half green feathers.

Beautiful birdie!!!
Welcome to tge forum

 

[Rozalka]

Agreed, I don't see anything to worry about

 

[Squeeing_Onion]

I finally found a photo of a similar discoloration on an article done by BirdTricks -- it's not that Bongo has half blue/green feathers, but these cross-wise stripes ON her blue feathers, and on her green ones. They were so very faint, it's difficult to photograph.

This article has a photo of a macaw with the same striped pattern I found, and much more prominent:

Feather Discoloration

Your parrot’s feathers speak to its overall health. A healthy parrot will have soft, vibrant and well-formed feathers. Flaws in the feathering, such as discoloration are often a sign of poor diet or the lack of sunlight, but can also be attributed to illness and the subsequent use of...

birdtricksstore.com

The vet was able to move her and Echo's appointment up, so I bring her in on the eighth. I'm so worried I have messed up somewhere in her diet, or that her past diet before I adopted her is catching up to her. She was basically on all-sunflower seeds for at least two years, if not longer, by the time I brought her home. (Her owners would refill her seed dish every time she complained for more food, after she had picked out all the sunflower seeds)