It started with the Peterson, then the Johnson and now the Collins. I go through these books time after time, looking, wondering and ticking off the ones I've seen. In my database every bird has it's own map, thousands of images in the tank off which many haven't been seen or published. Now I put this in a project, off every bird I photographed I'll upload the best (for now) following the same structure as the latest Collins. (Still under construction)