In reply to Bottom Clinger:
I think the golden plover flock must have grown since last Friday, was just starting to murmurate, maybe 1000. Kept on moving to where I wasn't.
About a dozen avocets there last week, sounds like more have arrived.
With luck (for me? no idea if a delay is good or bad for them) the cold snap will have delayed the return to the moors.
Merlins, with my record it'll be a female if I get a good view (at least I've got past that "jinx" with sparrowhawks).