Ours didn’t have any chicks either Ralph. There’s a big controversy going on here in the Chesapeake regarding over-fishing of menhaden, the keystone forage species for our ospreys, striped bass, etc.. The birds are starving and move on, maybe (hopefully) up to your area. I’ve wondered about the sticks disappearing also. Happens here and makes me wonder if another species is stealing nesting material… like eagles of which we have plenty. On an unrelated note; I recently bought the “F” mount 70-300mm P lens to fill a gap for both the D850 & Z’s. Noticed you have one… bet you like it. There’s a review out there by some guy in Europe on that lens with a “Z” camera….