I moved to this to its own topic since it wasn’t specifically addressing the request for adding the unobserved_by_user_id filter option to the app.
On thing you can use is the (experimental) Compare tool to look at differences between different queries, such as shorebirds in Ontario you’ve seen vs. everyone:
One thing is that you need to make sure you keep the search results to 500 or fewer taxa, so I just looked at shorebirds here instead of all birds. More information on structuring these search queries here: https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki/63
It’s a bit buggy and due for a redesign but you can also try comparing your Life list with the Ontario checklist:
https://www.inaturalist.org/check_lists/7219-Ontario-Check-List (I currently get a 504 Gateway Timeout error message when trying that)
