Leia off the perch

For the first time ever, the other evening I noticed that Leia was sleeping in a nest box, rather than on the perch. We've never seen her do this before. We were all out the next day so are not sure whether she was out and about or not but by the next morning she was still in the nest box and stone dead. This was quite a shock as she'd shown no signs of being ill. We're very sorry to see her go.