The Nauticus National Maritime Center in Norfolk reports:
Two Ospreys began building upon the TACAN antennae back in April, which is a smooth surface and convex in shape. Similar to the Battleship Wisconsin, the Ospreys engineered their nest beautifully.
We have a similar group of Osprey squatters in the mast of the old Cleveland-class light cruiser USS Biloxi (CL-80) at the Biloxi, Mississippi Small Craft Harbor. Although there are higher pieces of real estate available, they prefer the mast.