Yesterday I spent a few hours on the football field that I can often see but I can't usually visit.  Swallows were a constant and I managed to see at least one Red-rumped.  A stroll arond the edge and I chanced across the Long-tailed Shrike. He/she began to utter a "tac" contact call and it was soon joined by another. This leads me to believe that they are definately breeding in this area.  Anybody's thoughts on nest construction, position etc would be much appreciated.
I managed to see yet another new butterfly,this had the colouration of a Brimstone with black wing edge markings.