Abstract Thursday: What Is It

A very rushed day from beginning to end. Scouted around for something mysterious to use as an abstract when these caught my eye....what is it or what are they? ;o)

I've added an extra of an exciting drama witnessed today between two Kookaburrus, a magpie lark and a willie wagtail bird. The two smaller birds were trying to get the Kookaburrus to leave this tree but they sat there and didn't flinch as the two little birds swooped and pecked at them, quite hilarious really! :o)