Purr or scared?

[tinam5]

Ok when I hold Zoey she does this like vibrating thing. Is she shaking or is this a purr?

[Fanch]

If you are petting her, when you remove your have, does the vibrating stop? If so then I would say she is scare. One of my pigs did this and I just persevered through it and he never does it now.

[Char-x]

It depends exactly what kind of "purr" and viabrate it is, sometimes my piggies viabrate when they are annoying/scared (one of my girls does it after a bath and being dryed). Whereas Hoover will purr and viabrate when I'm tickling his chin !