Living on a canal boat I sometimes see things from a different angle. Today Iwent on a short cruise through Fallingroyd tunnel (Pictured) (Which transports the canal under the main road in between Hebden Bridge and Mytholmroyd) Iwas amazed to see quite a few large macro moths. There was a problem however, as the boat lights illuminated the moths only as a distance and not close up, and the situation was not one for hanging around. (A 13 ton wide beam boat in a narrow curved tunnel is a difficult navigational feat). The light was fading and it was very mild today so am not sure if this was a factor as I have gone through the tunnel many times and never seen a moth in there. I would say they could have been Feathered Thorn or Herald. I know these species well and also know their differences but couldn't get close up. Time to deploy the torch and rowing boat! Will report my findings.