I've wondered that too - it is especially warm where her cage is - but she has never seemed to care about heat before in all her 11 years. My parakeets would slick down and pant when it was hot, but it gets hotter here than it did where I lived then and Kiwi NEVER acts overheated.
Anyways she finished the job last night and now her entire front, legs included, is completely naked and pink. Most of her back as well. As before she's acting completely feisty and normal. *shrug* Anyways I guess this means she goes back on her medication (of which I have plenty left) in a few days. Maybe she'll learn to associate being plucked with having to take medicine and stop.
I dunno.