WORGREEN LAKE ON TUESDAY AFTERNOON.

I can remember when this place was an "Open Cast" site, just acre's of mud and small coal dust.
That must have been 30years ago..But a lot of good has come out of it,and now it's a great place for wildlife.
Sorry that it's not a larger photo,i need a longer lens. I think the birds are grey herons? They seemed  to be doing a display of sorts.