In setting up my folders and subfolders in Lightroom 6, whenever I import to a given folder, a subfolder magically appears, always with the same name. I have a lot of "Bird" folders, with subfolders like "Raptors," and subfolders within that such as "Owls," "Hawks," etc. One subfolder under "Birds" is "Shorebirds." Somehow, whenever I import into any folder or subfolder, and new subfolder titled "Shorebirds" appears, and the photos import into that as well as the folder above it. I can move the photos from "Shorebirds" and then delete the "Shorebirds" folder, but whenever I import to any folder, it will reappear. Somehow along the line I must have set a default to create this recurring subfolder, but I don't know how or why, or how to stop this from happening. Any ideas?