 Other very minor contributors were birds, light phenomena such as mirages or searchlights, and various miscellany such as flares or kites.The vast majority of identified objects (about 84%) were explained as balloons, aircraft, or astronomical objects.However, about 22% of all sightings still defied any plausible explanation by the team of scientists, and percentage of unidentifieds rose to 33% for the best witnesses and cases.