Yes, they do, they squeak to communicate and also, it sounds horrible but when being hunted and killed they make an awful noise.
Rabbits are mostly silent but they do make noises; and some rabbits are more "vocal" than others. Noises that rabbits can make include:
- tooth-purring (soft, gentle, rhythmic tooth-grinding): indicates pleasure, contentment
- tooth grinding (loud, crunchy): indication of pain
- grunt/honk (a low, bass noise): indication of excitement, interest, happiness
- growl/bark (a loud sharp noise): expression of aggression (anger/fear)
- scream (blood-curdling): indication of sudden extreme pain or fear-of-death panic
- squeak/snort (snuffly sound): indicates pleasure while grooming or eating (or could be a sign of sinus trouble -- see a rabbit-savvy vet if you're unsure)
- foot thump (loud and singular, not like Thumper's thump-thump-thump): indicates a warning of danger, or expression of frustration/anger
- mating noises: you might hear the grunt/honk during courtship and the squeak/snort during intercourse (sometimes with an element of a weak scream to it)
Rabbits can also be noisy by throwing their toys or dishes around, rattling cage bars, etc.
