Here's a breakdown:
* Squeals: Usually used for alarm calls or when feeling threatened.
* Whines: Can be used for distress or to communicate with their kits.
* Hisses: Often a sign of aggression or warning.
* Grunts: Used for various communication, such as during mating rituals or while working together on their dam.
You're unlikely to hear a "beaver sound" like you might hear a bird's song or a dog's bark. Their sounds are more subtle and varied depending on the situation.