i have actually seen a swift fly into this spot before and that during the mid-day. i would love to stand outside for half an hour observing the to see if they are going in and out but the family that live in it are troubled and cause trouble. one of the windows has been smashed. i do know the family and keep my distance.
some house martins are still nesting around the area.
would it want to roost so late in the season? the only thing that could hold them back now would be young? i wish i could stand out side the hosue for prolonged periods but would lead to public disorder i am sure. still few swifts around even with young on some nest cams. are they late this year?