I was waiting in my car in the Lake Oswego Wizer's Oswego Foods parking lot for my wife to finish her Jazzercize session when I happened to notice a very dark, small object above some Douglas fir trees. I got out and photographed the "drifting" party balloon-like object, taking a continuous series of seven photos. Within a few seconds a second similar object did the same thing, and I got eight photos this time. My wife just got out of her session, but the UFO was too small to be seen then. Within a few minutes, two fighter jets swept the area going from east to west then turning north something like the two UFOs did. I got three photos of the jets. The UFOs were similar to what dark black (very black) small party balloons might look like. Curiously, one photo in the first sequence, which should have had the UFO did not. All six of the of the others did. For further discussion and analysis of the event, see the Oregon MUFON web site at oregonmufon.com.