hundreds of UFOs in Japanese parkMy spouse and I were walking our dog, like we do every morning. We were passing by the park when the dog started barking. We looked at the field and there were little crafts flying over the grass. Every once in a while, a few would vertically fly up to the sky and new ones would come down. The sun gleamed off the surface of the crafts, and they made a metallic clinging when they would bump into each other. They made whirring noises and I knew they were not insects because when we approached them to see what kind of insect they were (my spouse is an entomologist, they backed away as one and seemed to join together to form a vertical column and drifted straight up into tht sky. We watched to see where they went, but they did not disperse, but remained in a straight column until they were too small to see.