If the feathers have a blunt, square, "cut off" edge to the shaft, that usually indicates a bite of some sort, so fox or cat etc. Raptors will pluck/rip their prey, so the feather shaft is usually intact (still pointy) in that case. Hope that helps. Cheers, Sandra
Thanks Sandra. Zooming in my pics the shafts look more intact than sheared so a raptor perhaps? I expect it would have to have been pretty large? However, I've been made aware in the past that a fox has been seen on the site. Other possibility might be if it was someone's dog?