That has been my project ever since this reply was posted. I encourage others to join in if you understand the taxonomic framework of birds. No need to filter by location for orders or even some families – Charadriidae look like Charadriidae everywhere in the world.
What amazes me is how many people know enough about birds to know when something isn’t the right species, but don’t know what a passerine is! I find so many that were knocked back from species-level to “Birds” when they are unmistakably passerines. Or even stranger, when they comment suggesting possible species, all of which are passerines, but don’t add “Passeriformes.”