Chislenko
Veteran
Probably an old wasp nest as the queens are still hibernating. However, unless you sit and wait or poke it with a stick you'll never know.
Don't think it can be old as I re coated the summer house last spring.
I need to get up on the roof ( when it stops raining) as some felt has come off in the storm.
It's looking like the extending window cleaning pole is the best option for poking!