Safety First

Near the top of a building 25 feet high convenient to where I reside there is a hole in the wall 4 x 9 inches in size, and I have often noticed Starlings examining it, but they never nested in it. I formed the opinion that they thought it was unsafe, so I closed the inside of the hole completely and blocked up the outside with the exception of a 3-inch space at the top. The Starlings started to build almost immediately, and are now feeding young ones.—“G. B. Mc Keown” (Draperstown).