The parents of the clutch that was killed are bravely trying again! They have laid six eggs which are due to hatch around June 21. As we anxiously hope that they are more successful this time, it does bring the issue of invasive House Sparrows to the forefront.
We are exploring ways to prevent these birds from endangering the recovery effort. One issue that has come up is the prevalence of boxes that are attractive to House Sparrows but not monitored to keep them out. Many people with the admirable goal of supporting wild birds end up inadvertently creating higher numbers of House Sparrows which go on to attack native bird species. One approach we are looking into is providing a way to limit boxes to smaller species by reducing the hole size on boxes that are not intended for bluebirds or in areas that are too over-run by House Sparrows to be safe for bluebirds to nest. One of our volunteers, Ted Leischner, has created special plates to add to existing boxes for this purpose. Please let us know if you know some good candidates to receive these plates or if you have more ideas on how to tackle this challenge!