You are welcome. Crossley's ID Gude is a different approach published in 2011 - it is all photographs that he took, over 10,000 that he places on pages to show each species in it's habitat at different different distances and ages of birds.
It was almost overwhelming at first there are so many images and detail on 7.5 by 10 inch pages , and it weighs almost 4 pounds.
It is not the usual bird guide, but you can check it out on Amazon and see if you might like it.
I know I started with photography and then shooting birds, and now birding is just as much fun for me.