Hi Chewy,
We have a 4 year old male chinchilla that bites. He is a healthy, very small beige guy. I wish I could talk to him about this whole thing and he could talk back and let me know just why he started to bite!
He was always a pretty nice little guy, then all of the sudden he just started to bite when you put your hand in his cage to give him hay or pellets, or anything for that matter.
It is very shocking to put your arm in his cage and have him fly out of nowhere to take a nip out of an arm or hand. He pretty much attacks. Mike and I have to draw straws every night to see who gets to feed Pat!!!!
We love him though and treat him just like the other chins here. He had a rough start in life and I rescued him from a pet store years ago.
He had severe ringworm and we actually treated him for 6 months until it was all said & done. He was sweet back then.
If you can get him to climb out on your arm then he'll let you hold him and give him rubs and HE LOVES IT!!!! That is the funny thing. He just hates anyone in his cage for some reason.