I have sunflowers that come year round and I always try to stop the budgies from "murderifying" the fluff out of them. However it never works:(. I'm planning on putting all my budgies in a smaller aviary do they can breed and can eat vegetables and lettuce instead of my sunflowers.
Sorry to hear about your sick family member😔 I have a huge aviary and it has lots of vines. They actually grew threw the ceiling and my budgies love swinging on it. They Aldo started blooming and the bees were all over them. I had some good sales, I breed and sell locally. That includes Coturnix...
That is amazing, of you want ideas I'd suggest making the nest boxes very big with lots of pine needles and bits of hay. They might actually go broody. I have a broody hen who made her nest out of dead vines and bit of hay! She's a jumbo!