Bunya has started to squeak and grunt when eating. This is a fairly recent development. A prior bunny, Alice, used to "growl"; her little motor was running all the time (a little ruby-eyed white, Alice did not like to be picked up but once you did, her little body melted into you). Other than Alice, we have not encountered "verbal" bunnies.
Turn sound up and listen. Filter out the crunching sounds of a small piece of Probios he was munching as a treat for taking his meds. He sounds like he needs WD-40. If this is indicative of any bunny condition or illness, please let me know.