In October I saw many Pomarine Skuas (Stercorarius pomarinus) and some Arctic Skuas (Stercorarius parasiticus). They were many types and stages. But all photos are Pomarine's, maybe...
They stayed around Kittiwakes' assemblage and aimed for Kittiwakes's prey
I will introduce the battle at later entry.
With a small central tale-wing, called "spoon".
With full "spoon".
All photos in Tomakomai, Hokkaido. Oct/2009.