Here's a thread with cleaning information you might both find helpful:
viewtopic.php?t=33269 Naomi, avian respiratory systems are far more efficient than ours, meaning they breathe much faster than we do and that makes them more susceptible to airborne toxins. Canaries in the mine. Bleach that's well rinsed is safe for humans, but not for birds. The damage is done slowly over time, so your birds may not have reacted in a way that's noticeable, but it's important to clean with products that aren't harmful to them.
I hope this is useful. Paca