You may have thought Big Bird was unrealistically gigantic, but he's still not the largest bird to ever walk the Earth. That honor goes to elephant birds, which stood 10 feet tall and roamed Madagascar thousands of years ago.
원문출처 : https://www.cnn.com/2018/10/30/world/elephant-bird-study/index.html
원문출처 : https://www.cnn.com/2018/10/30/world/elephant-bird-study/index.html