Its the male Great-tailed Grackle defending his turf. Or maybe he's just peeved because he's wearing a pitch black feather coat in 110 degree weather. With his crazed, maniacal, menacing look, he'd make a great side-kick for some dark goth-girl, or a black-leather-clad biker-chick, or even a wanna-be teen vampire. Hmmm... I think the heat is getting to me.