I could not believe how long he sat there but I have a good selection to pick from. I will send more of other birds. - Mark
The only house I’ve found to deter sparrows some of the time is the Slot Box nest. The Slot Box design, as the name suggests, has a small slot below the roof for birds to enter instead of a round or oval hole. According to research at the University of Kentucky, bluebirds will use a slot entrance while sparrows prefer the round opening. In addition, sparrows don't like these shallower boxes and bluebirds don't seem to mind. Another advantage, is that the slot design makes it much easier for bluebirds to escape from the house in case a house sparrow enters to attack the bluebird. However field experience has shown that sparrows can adapt to many nesting locations and the slot box won’t deter all sparrows.
Thank you Mark for sharing your photos! If anyone else would like to share a
photograph of nature send it to firstname.lastname@example.org with a description and permission to post it on the Friday Photo.