I know that the pictures aren't the highest quality but I think that you can still see that it is a helicopter. I was sitting in my house a couple days ago and all the sudden I heard (and felt!) what I thought was a train because I live kind of close to the tracks. But then it got louder and louder and started to vibrate the entire house! I looked outside and saw a helicopter flying really low so I grabbed my camera a snapped a couple shots. I was able to see the red cross on the side of it to depict that it was a medical helicopter. I thought that it was going to land at the hospitol which is about half a mile away from me but it never did. It circled over head three or four times and left. It was pretty cool though, since I had never seen a helicopter flying so low around here.