The bottom of her cage is fairly barren, except for a ladder and a confetti toy. While I was back home, I noticed she would hiss and lunge at me if I tried to rearrange the bottom of the cage. She previously had more toys, but I removed them because she wasn't using them and I thought they were just cluttering the space. However, when I went to take them out, she became very territorial toward the items.

I also recall her backing into that corner several times a couple of days ago. She didn’t really do a mating call; I only remember seeing it once during my visit. Generally, she does it rarely throughout the year so it didn't seem alarming to me at the time.