Multiple choice general knowledge history In The Castafiore Emerald, the culprit who stole the Emerald was a bird.Which bird? Chukar Magpie Dodo Hoopoe Reveal answer Fill a bubble to check yourself B Correct answer Explanation In The Castafiore Emerald, a magpie bird is revealed to be the culprit that stole the famous Castafiore emerald. The bird had a habit of collecting shiny objects and had taken the emerald, which was later recovered from its nest.