Out of curiosity, I google-mapped Auburn, MA.
As woodbutcher1963 points out in post #19, Auburn, MA is a suburban neighborhood.
Personally, if I were one of his neighbors, I would not be too pleased with him that he was hunting bear in his back yard.
IMO, there are legitimate purposes that animal control serves. This would be one of them.
I don't think a call to 911 would be warranted, but a call to animal control reporting a bear in a suburban neighborhood would not be an unreasonable step to take.
It is not unreasonable to call animal control, it is however foolish to believe they give a rats ass.