A pair of cute little house wrens think our mailbox is the perfect place to make a nest. They have repeatedly tried, year after year, to build their nest in this box. They eventually give up because there is too much activity in the area of the box for their comfort. Last year or perhaps it was the year before, I bought a real wren house, just perfect for them, hung it out for them, following all the prescribed dos and don'ts... to no avail. Where they eventually build their nest is still a mystery but after all their efforts yesterday, they are looking for a more suitable place. I hope they find it and are safe there.