They are beautiful!

Hmmm, a friend of a friend has built each room of his house into bird cages using some sort of giant stainless steel fencing material... it holds everything from a Quaker to a Hyacinth and U2, so it is very durable. (His house is crazy! It's so cool though!) I can ask my friend what he's used as I'm sure you could use it to build an enclosure outside.

Also, I was passing a small construction site the other day (redoing the outside of an apartment building) and they had these giant metal fences put up (like 12 feet high) around where they were working and they looked like a huge bird cage and my friend thought it would be perfect (if it was indeed stainless steel) to make an outdoor enclosure for her Macaws outside (even the bar spacing was perfect!). So I wonder if it would be possible to contact some contruction companies and see if they know where you could buy that... I've been googling for the past 15 minutes and can't find anything!

Good luck!

I'll definitely ask my friend about the material used on those cages though!