As Northern Eggars have a two year life-cycle, does that mean you only see them on the wing in alternate years?
They were on the wing during the Twite survey on Midgely Moor last year (May/June?).
All postings on the blog this year relate to cats, with postings relating to adults all being from June 09.
I haven't seen any this year, but I haven't always been around suitable habitat.