Hello again,
Just thought I'd pop back and post another few images I obtained of more fallstreak holes.
This one shows one in the distance on the right, with a sundog on the left. I think I can make out the other sundog inside the actual hole (Although with the reduced resolution, I'm not sure its so easy). This could have been a really nice photo if I had had a zoom lens and or better imagination.
The same fallstreak hole, at 55mm, a little later on.
Another one began to form to the right of the first one, in or around the same place where the first one formed. At one stage I could see 5 of these in different parts of the sky. Unfortunately, they were all quite a few miles away, so no spectacular photos. We've been having these alto-cumulus clouds hanging around this neck of the woods for quite a few days now. Hopefully they hang around for the weekend!