A pair had made a nest in an old wooden cable drum that we had left on our garden path (it was actually my seat).
We moved it this morning (after carefully checking inside) to the garden border.
This evening they both flew back to the original area, desperately searching for it.
After watching for a period of time we moved it back to the original position on the path and shortly after they landed on it and popped in the hole.
Does anyone know how they navigate? Obviously not very sighted.