* Bellows: A loud, deep, resonating sound, often used for communication or warning.
* Snorts: A sharp, explosive sound, often used to express annoyance or alarm.
* Grunts: A low, guttural sound, often made while grazing or moving around.
* Bleats: A high-pitched, plaintive sound, often made by young yaks.
Here's a fun fact: Yaks can communicate with each other using a range of different sounds and body language, including head movements, ear positions, and facial expressions.