Its not bats Marg
as one gets them flying about inside the house in the summer
and they fly like moths,
zig zag zag zig,
and only a sparrow has such a short wing spann,
The lens that took the photo is not coated with "aniti star" film,
the added small white spots in the dark field indicate night time,
and the light diffusion points to sub aqauatic
,
Either that or zip was blowing some stogie puff plumes about
1.Squid
2.Some fish,
3.The camera was using LSD coated film(opps film is so rare)
Zipp spiked his flash card with Phencyclidine.
4.Zipp like purple mushies
5.Bio luminencent alien
6.Fairies doing the foxtrot
7.NoBoDe ready to be sectioned