I was driving along on I-540 in Raleigh at sundown tonight, cruising at about 70 mph, heading to my weekly jam session with my buddy. All of a sudden I see the HUGE bird looking thing fly across the overpass I was on, maybe 20-25 feet in front of my car and about 7 or 8 feet off the ground. When I say it flew over, I mean it darted... Like a bird of prey. The first thing that caught my immediate attention was the fact it had an enourmous pointed beak, with a pointed top of it's head. My eyes followed the body down and I noted that the wingspan was probably about 5-6 feet wide. Kind of bony wing stucture ending in points (almost like sails) with what looked like small claws in the middle. Bat-like in a way. Couldnt tell really well but the body looked like greyish fur or dark skin. Two legs like a bird kind of jutting straight out of the ass section, followed by (and this is what REALLY made me freak) a LONG tail with a spade at the end. It then kept its wings open and leveled out, soaring over the foresty/swampy area below the overpass. I am not joking. I was not drinking. There were NO drugs involved. Some friends I told tonight believed me as they knew was unusually freaked and excited. My wife thought I was full of it. Before you say anything about bats, no bat I know of it THAT big with a long spaded tail and a pointed head and beak. No bird I know of has fleshy wings nor a tail. I have thought about this all night going over every possible thing it might have been. Pterodactyls don't have long tails in reconstuctive art I looked at afterwards. Question is.... WHAT THE HELL DID I SEE?!?