While bunnies are known mostly as quiet, passive animals, they actually produce quite an array of sounds. Some sounds are discreet and you have to pay close attention to catch them, others are loud and unmistakable. It's important to know these noises and what they might mean in order to better understand your rabbit or know if she is in pain and needs attention.
These happy little grunting sounds, called "honking," are like a love song. Often loudest and most prominent in intact males and females as they circle your feet or perform other amorous behaviors, but fixed bunnies also can make this cute noise to express affection or admiration.
Rabbits purr by quietly grinding their teeth or chewing air when they are being pet and are happy and content with life.
Loud teeth grinding
A rabbit that is lying on the ground with her arms and legs drawn in close to her body, making clearly audible chomping sounds is in severe pain and needs medical attention right away.
A shrill, high-pitched scream that comes for an injured rabbit right before death. I've never heard this, nor do I ever want to!
This unmistakable sound is produced by rabbits right before they attack or bite. Could be at a human, another bunny, or another animal. Often accompanied by a double front paw lunge forward. Rabbits with attitude growl when defending themselves or their territory or when expressing general disdain toward a variety of situations.
Also done right before an attack and in correlation with lunging. This rabbit is angry!
Thumping or drumming with the hind legs means the rabbit is aware of some apparent danger and is trying to either warn it off or warn others. The sound of the thump and the resulting vibrations in the ground would be felt by other rabbits in the wild, who would perceive it as a warning sign. When this occurs at home, simply tell your rabbit "everything's okay," in a reassuring voice. Rabbits may also thump to express disapproval or disgruntlement.
I've heard multiple stories of rabbits squeaking, but I've yet to come across it myself.
Some rabbits snore or moan in their sleep. These bunnies are usually on the portly side.
Every now and then a rabbit will emit a surprisingly loud snort.
Yes, rabbits can hiccup! They make little hiccup-like noises and look as if they are spasming for a few minutes.
It's fun to try communicating with your rabbit through their language. For instance, whenever my rabbit, Graysie, is lying on the couch with me and purring, I grind my teeth too. Often, she responds by licking my face and grinding back. I don't have to tell you this nonverbal exchange undeniably means, "I love you!"