Birds’ honks filled Late Cretaceous air
Sounds inferred from oldest preserved avian voice box
![ancient bird diagram](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/10/101216_mr_voicebox-fossil_feat_free.jpg?fit=860%2C460&ssl=1)
ANCIENT VOICE BOX A ducklike bird that lived some 68 million to 66 million years ago left behind fossilized remains of a voice box, or syrinx, on an island off the coast of Antarctica.
Nicolle Fuller/Sayo Art for UT Austin