I heard some rustling around on the deck this morning and looked through the door to see a little wren with a string and some mossy stuff in her mouth. I'm not sure but I think it is the same little "family" that finds my decorative bird houses a great place to live. I didn't go out for fear I'd frighten her off but I plan to investigate later. I love the thought that my little outdoor houses make a safe place to raise some babies! It looked like she actually chose the Texas boot house this year. GOOD CHOICE.