European Starlings?

Burr oaks, birdfeeders and flowerpots through the front window


Scott's pile of black dirt behind the oaks is meant for levelling the yard, but I've been using it for flowers; it's dwindling fast.

European starling checks me out; click photos to enlarge.

These birds arrived yesterday and notice me when I approach the window. Usually they all fly up and away, but I'm getting sneakier.

This is the best pic I could get to show the colour brought out by light.

Or are these brewer's blackbirds? Or purple martins? Or brownheaded cowbirds?
Any bird experts out there?