Chapters Four and Five of Live Pterosaurs in America are titled “Flying Luminescence” and “American Ghost Lights.” The lights have been seen in many states, some of them for generations, with names like Marfa Lights (Texas), Hornet Spook Light (borders Kansas, Missouri, and Oklahoma), Brown Mountain Light (North Carolina), Yakima Lights (Washington state), and Bingham Lights (South Carolina). The book deals more with Bingham Lights and Yakima Lights. [Update: the second edition of Live Pterosaurs in America, published late in 2010, has a whole chapter about the Marfa Lights.]
Of course not all these “ghost lights” need be from the same source, and even in one area, unidentified lights need not all be from the same source (Yakima in particular, according to the book). But the regularity, over many years, of the light-sightings in some locations strongly suggests that in at least each area, the source is the same (for many lights) over the history of that area.
My associates and I have a unique perspective, having studied the ropen light of Papua New Guinea. We know, from many eyewitness testimonies, that those nocturnal lights correlate with sightings of glowing flying creatures described like giant Rhamphorhynchoid pterosaurs. We suspect that some American “ghost lights” are from living pterosaurs; some flight behaviors, such as a fast dive from the sky without any fast ascent, obviously fit a diving creature more than a ball of gas.
From my investigations (including analyzing eyewitness testimonies over several years), I believe that some of these American “ghost lights” come from at least two species of bioluminescent pterosaurs. All the species are rare, not necessarily endangered. Of course, not all apparent pterosaurs seen in daylight need be bioluminescent at night, but when a ghost-light location is nearby (note the Susan Wooten sighting in South Carolina), it deserves consideration for that particular creature.
Regardless of the degree of rarity of modern living pterosaurs in North America, how rare the scientist who has interpreted strange flying creatures or ghost lights as potential living pterosaurs! This is not in itself evidence against the hypothesis, for our society indoctrinates us into universal-extinction-of-all-dinosaurs-and-pterosaurs. The evidence for living pterosaurs (including perhaps bioluminescent ones in North America) includes rare sightings of the creatures in daylight, when they are obviously non-bird and non-bat. This deserves serious consideration, in light of the continuous invesigations that continue to involve new sighting reports.