One day, as I was sitting out in the backyard enjoying the solitude of nature, I became aware of a small group of grackles sitting up high in a pine tree bantering back and forth to one another. Though I wasn’t sure the gist of their conversation, the pleasant exchanges seemed to be in harmony with the peacefulness of the morning.
“The happiest conversation is that of which nothing is distinctly remembered, but a general effect of pleasing impression.” ~Samuel Johnson
walking on a country road 
Grackles are rather chatty. I like to see their display of seniority in the pecking order – poofing out their feathers, beaks pointed toward the sky, then the rusty-door-hinge note.
I know exactly what you’re talking about. I watched one do that just the other day. I took a few still pictures, but still pictures just don’t do it justice. 🙂
I never seem to quite catch it, it’s so quick.