Page 8-6 of the AFH.
Mid-air collisions generally occur during daylight hours—56 percent occur in the afternoon, 32 percent
occur in the morning, and 2 percent occur at night, dusk, or dawn.
⦁ Most mid-air collisions occur under good visibility.
⦁ A mid-air collision is most likely to occur between two aircraft going in the same direction.
⦁ The majority of pilots involved in mid-air collisions are not on a flight plan.
⦁ Nearly all accidents occur at or near uncontrolled airports and at altitudes below 1,000 feet.
⦁ Pilots of all experience levels can be involved in mid-air collisions.