Wrens are very small birds who like a particular type of birdhouse. As a matter of fact, all birds have a specific preference in the houses they choose to occupy. If you want to attract wrens, you should build a wren house that serves their needs.
These birdhouses require an opening of a one and one half inches diameter hole. And the house should be anywhere from 5 to 10 feet off the ground. If you decide you want to put up more than one, you need to space them about 50 to 200 feet from one another. This spacing is determined by the kind of wrens you are trying to attract to your birdhouses.
When building your birdhouses, make sure that there is no hardware protruding that can harm the birds when finished.
Also, build in a way to open the birdhouse for easy access at the end of each season. Once a bird family vacates, it will need to be cleaned out so a new family can move in during the next season. Birds will not move into a birdhouse that has an old dirty nest. And they are not really capable of cleaning it out themselves. If you want to continue to enjoy your birdhouse, be sure to make it inviting for a new family each year.
Make sure that the roof is constructed in a way that rain will run off of the house and not into the inside. But, add a few drainage holes, just in case. Put a few ventilation holes on the sides to allow air to circulate for your new bird family’s comfort.
Building a wren house yourself is a rewarding activity, but seeing them move in and raise a family – that’s just the icing on the cake!