Red millet sprays are supplied in the flight. As well as an additional source of protein these are also used for play. One flight is used for the barheads and when they moult out they are transferred to the other flight. So the chain leads from the breeding cage to nursery cage to barhead flight to moulted out flight then eventually into the adult flight or for the best youngsters into the stock cages where the show team is prepared. In the wild birds breed in the open air.
Fresh air helps prevent disease.
The ideal, which I have aimed for is a pleasant, consistent temperature and humidity. Both windows at the front of my birdroom are never closed during the day. I have four free standing fans. I have a further four wall extractor fans pulling out air. I also have freestanding filter ionisers.