Definitely a wren house!

The wrens always stuff sticks in the holes of their houses. They use them as a perch and maybe to make the hole smaller? This gourd has been out all winter, the rough part of the coating was an experiment. 😉 I tried putting on reflective beads to hang them along the driveway but they did not reflect. The beads stayed on the gourds though! Wrens don’t care.