The day I watched the seagulls playing king of the hill, I was sitting on a concrete block. I turned around for a few minutes and right behind me on another block with this beautiful grackle. His feathers were bluer than any grackle I had seen before, maybe because I had not been this close to one before, but I think my camera settings may have accentuated the blue a little more than it actually was in reality.

For more information on Grackles go to https://www.allaboutbirds.org/guide/Great-tailed_Grackle/overview