@Simkin I guess where you live, birds are quite scarce?
I have experienced this "good fortune" once. It resulted in making a 180 turn, getting back home, and throwing my jacket into a washing machine. I felt no great fortune whatsoever. The only thing I felt was the desire to kill a bird.
@Haydrion101 yup, almost as if she lost one of her senses with no prior warning and no idea why, and everyone around her is just as blind as she became and thus can't tell her about her surroundings secondhand. Props to him for figuring out it is not something unimportant and easily digested.