They will lick themselves just like a dog or cat,to groom themselves. During this process the loose hair comes off on their tongue. Not being able to do anything else with it they will swallow it.

There are other times when they will " scratch " themselves by rubbing on a tree, etc. They can smell their scent and get curious and lick it, now it' s stuck to their tongue. Not being able to do anything else with it, they swal...