We have observed a new species of bird to our yard the last week: Tree Swallows. They were lured here because of the vacant nest box that the bluebirds used last year. I was unable to trap both of the House Sparrows that were building a nest although I did manage to trap and kill a male who I suspect was the nest builder. So, our yard is now house sparrow free and the Tree Swallows are pressing forward with their plans to build in the box. Papa Blue is not happy with the recent developments since he views that box as his, but he's just going to have to get used to it. Tree Swallows will not attack bluebird nestlings or adults, but they do compete for nest boxes and cavities, so they are natural rivals. I'd love to have the Tree Swallows reproduce using that nest box. They are insect vacuums, are beautiful birds on the wing and have a lovely chirping song. It gives me hope that we can attract Purple Martins to our property next year.
Posted by Elizabeth at April 9, 2005 11:35 AM