Interesting approach to counting one species groups. There are programs that allow for clicking on individual birds in such a picture. I have zero knowledge of the 5W's. If anyone does have that information, please post it or contact me directly.
Another approach is to count aloud into a recorder. This works well with mixed waterfowl or while using a scope.
*Happy Birding* Clay Crofton The Boy Who Cried Wrentit