JMartJr
Senior Member.
Kites get a mention (but @JMartJr isn't listed as a co-author ). Flares as well- long before the Phoenix lights.
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(Not sure comets are often mistaken for UFOs). (Pages copied from pop-culture website We Are The Mutants, here https://wearethemutants.com/2018/07/17/usbornes-world-of-the-unknown-ufos-1977/; can't vouch for the rest of the site).
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I am distressed that the linked scan of the book omits page 21 -- I am very curious as to how kite TAILS could create UFO reports.
The 2 of 800 count for kites generating UFO reports is, I think, much lower than we've had here, I attribute that to the rise of LEDs on kites for night flying. (But maybe it also hints at the utility of having a kite nut "on the staff.")