The Lincolnshire Bird Club

I spent all day in a boat off Mablethorpe yesterday, fishing but birding at the same time. What a huge difference to the last time, many years ago when I watched bonxies chasing terns and sea trout leaping out of the water, this was always in August time.
I saw 2 Sandwich terns, I know there are quite a few on Grainthorpe marsh but 2 compared to last boat trip down there ! One comic tern, very very few mackrel, years ago we used to put the boat under the diving terns to get mackrel for bait, yesterday all the boats were struggling to find half a dozen mackrel. I did see several cabbage white butterflies coming from the east and heading west, what is that all about, are they migratory ?
The times they are a changing.

Well well, apparently cabbage whites do migrate..."Many adults seen in Britain and Ireland have flown from mainland Europe. Numbers of both residents and migrants of this common and widespread species vary considerably from year to year."
So from what I saw off Mablethorpe, they are crossing the North Sea from...Holland?
I know I know, this is predominantly a bird site but there are so few birds nowadays I might well migrate myself, to insects !