I live in Central FL and am interested in getting a pair of Rose Breasted Cockatoo's. I have a large outdoor enclosure that is currently being used for Mandarin ducks. It's about 30' x 20' and with a little modification could be a great enclosure for Rose Breasted's. My question is how cold can they handle? In my area it is very hot in the summer, but in the winter the night time lows can get below freezing on occasion. The coldest I have ever had was down to about 22 degrees but that is very rare. Is this even a possibility or is that just way too cold? Thanks for any help.