In my laboratory at Ruhr University Bochum in Germany, my colleagues and I took Gerti, a Eurasian magpie, out of her home cage, covered her head with a cloth, and placed a small yellow paper sticker on the black plumage of her throat, which she could not see. Then we placed her into a test cage with a large mirror, left her alone and went to the neighboring room to observe her through a monitor. Gerti first looked into the mirror and immediately tried to vigorously remove the sticker by scratching her throat or rubbing it on the floor. Once she did, she took a final look into the mirror to calm herself down. In apes, such behavior is taken as evidence for self-recognition. Never before had this been observed in a bird.