Hi Charles, I’m not too far away from you, I’m based in Kent. I’d love a meet up to discuss all things owling if there were a few more people to make it work. Or maybe Zoom would be an idea to involve the US owl hunters?
I don’t have many tips really. I don’t think affordable copies of the book can be found, and also don’t think it’s necessary if you have a good PDF download… Mostly people want the original book for the images, but I’m not soo sure there’s much extra to see. If you keep an eye on ebay the 1993 maps do come up now and then. I think the scale and plots are exactly the same on all editions up to 1996 or something like that… There is a french site that has a lot of detail on this. I think it is important to get the right map but not sure it has to be the exact year.