We have a nesting pair of Bluebirds in our backyard in a house my Granddaughter and I made, just makes it better. We get several hummers every year, keeping several feeders a ways apart helps keep em interested. If they're close there seems to be one male that wants to dominate them all. Had a hummer fly into the neighbors back room 2 years ago in July when Camryn was here and it couldn't figure out why it couldn't fly through the glass. She spoke in a soft voice, walked over and picked it up, and released it outside like she did it every day. Special memories........