I didn't want to be titled worrywart BUT Since things were turned back on I thought that they were doing a lot of checking out sticks/branches, looking for building materials, and observing from above to see whatever. Recalling too that original nest at Decorah was on the cliffs, before with original Mom. Even M and D liked just sitting on the edge over the cliffs and watching their realm for quite a feww years. Youngins too spent much time there just sitting and summing up the territory.
Time will tell.
P