Nibbler

mire, often for hundreds of yards, to be at last disappointed, and stand exposed on points to the "pelting rain or more than freezing cold," for hours, without even the promise of a shot, would try the patience of even FRANKLIN'S "glorious nibbler.

I have had pet squirrels for i guess 20 years, they bite instinctively, its what they do. mine don't bite hard they just nibble to see what they like, tame ones are nibblers but there going to bit a little.