The suggested individual classifications that follow are derived from personal observations and study of all those listed. Visual features described. Multiple objects with noticeable space between them, that maintain their position within the group throughout the sighting and because of their positioning appear to form random patterns. Multiple objects with noticeable space between them, positioned in such a way as to form a slightly bent line or typical 'Boomerang' shape, and all objects moving as one within the formation in the one direction. Usually surrounded by a white haze.
Larger formations have Discs in staggered straight line positioning.
A single solid object of boomerang shape that may have multiple illuminations forming the shape. Often seen at low altitude and very large in size. These formations are usually surrounded by a dull white haze. Usually containing 5 or 7 individual discs yellowish in colour. This second group seems to be a flight pattern used when travelling some distance.