I think they're like any other...probably around 6 months so not for a bit yet. I still have to figure out nests so hopefully not too soon. Igor wants me to use the plastic ones but I said no. We need something more open with better air flow for them. It's not about our convenience but their welfare.
I agree 100%...a lot of times what we have to do for our birds isn't at our convenience.
I wonder if something like a wooden crate would work. Maybe along these lines, just cut down on one side?