Just an image I took yesterday of this male Northern Harrier (Circus cyaneus) flying by.
Male Northern Harriers are often called “The Gray Ghost”, just by looking at the soft gray plumage I can guess part of the reason why they are nicknamed that. Because I photograph harriers often I can also say that they are very quiet in flight and they seem to sneak up on me often. Maybe that is where the “ghost” part of the nickname comes from.
More Northern Harrier images