So I revised the email I had drafted and pointed out that I'm working on several possible solutions but they will take time and I need her patience. I also pointed out that the solution requires me to spend a significant amount of time outside in the Arizona heat building it, but I'll suffer and get it done. I did remind her that there is significant ambient noise in the neighborhood that we can all hear in our homes during the day. Delivery trucks at the bar next to them, helicopters from the local municipal airport, motorcycles, and weekend landscapers.
My plan is to move the bird about 8 ft back from where they are now. This will put them closer to the block walls of our bedroom and leave less room for the sound to travel out the side of the cage. Then I'm going to put a thick bamboo screen up against the cage. It's 6 ft high, and 12 ft long, so I'll have to partially fold it over itself along the cage. I'm going to put acoustic tiles in the section that's doubled up. This will direct the noise forward towards the west side of our property. There is a block wall there, but it's covered with plants and trees. It's also about 100 ft away. I'm hoping that it will absorb a lot of the sound and leave very little to reflect back in their direction. It doesn't get horribly cold here in the winter but we do get some nights in the upper 30's with the occasional frost warning. Creating this nook for them will let me hang a tarp up in the winter when it's expected to be cool. They have been outside all of their lives, so I have no doubt they can handle it, but I covered the cockatiels in the winter and they did very well.
One thing at a time. If I eventually have to bring them inside, that means some conures need to go outside. I wonder how she would like to hear a bunch of sun conures