In the early evening I left Tweetie for about three hours. It was just before sunset and I left the shutters open, lights on and music playing. She was happily sitting on her new perch when I left. When I got home she clutching the bars at the top corner of her cage. I didn't see anything out of the ordinary and I couldn't coax her down. I closed the shutters and moved her cage next to the chair where I usually sit. I put her cover on leaving the front open and talked to her while I was watching TV. She never moved. At one point I put my finger in the cage next to her to try to get her to move but she just opened her beak like she was going to bite me. When I went to bed, I left the front of her cage uncovered, a lamp on and budgie sounds playing on my computer. This morning she was still clutching the cage bars. After I got my coffee, sat down beside her, turned off the budgie sounds and turned on the radio, she came down to the top perch. She's sitting there fluffed up. What should I do for her today? What happened?