I don't think these are hawks. My guess is they are the big giant vultures that snack on roadkill around here. But I'm not really sure what it is. They sometimes fly pretty darn close to the house - as they did today and I was out and stood over the ducks just in case and then when they went back to circling higher, ran inside to grab my camera to see if I could get a pic before they flew too far up or away. Do I need to worry about these suckers plucking off my 3 indian runner girls?