Reply To: Bluebirds at feeder Home › Forums › Bluebird Chatter › Bluebirds at feeder › Reply To: Bluebirds at feeder December 18, 2016 at 10:45 pm #3029 tamseaModerator I would have trapped them too. You might have problems with those house sparrows in the spring. Buy a Van Ert trap and anytime a HOSP starts a nest in a box….trap it. That’s my opinion. This reply was modified 8 years, 2 months ago by tamsea. Tammy