Perhaps it's so cold at night some of our nocturnal species have resorted to flying by day! Not looked but is Yellow Horned known to fl during the day?
Occasionally on sunny afternoons, apparently.
Just had one in Carmarthenshire too! See Carmarthenshire Moth blog site for details. Fantastic orange underwing photo Chris...they are so flighty!
Thanks Ian. What is the link for the Carmarthen blog?
I've added the Carmarthenshire Moths Blog to the links section
That's great, many thanks