When her son was small, says Aline D. of Pitkin, Louisiana, a pair of Carolina wrens thought their windowsill was a great place to build a nest. We didnt agree, but every time we removed the nest, they started building another one. We finally gave in to their persistence. We were glad we did. My son had a lot of fun watching the mother wren raise her family. We were actually sorry to see them leave." "After the young wrens fledged, we removed the nest. To our surprise, we found a $10.00 bill inside it. We figured it mustve been the wrens way of tipping us for their pleasant stay!