How can I find my observations that are NOT in a specific project?

General
1

All this month I’ve been adding observations to a traditional project. Discrepancies between my counts and theirs suggest that I failed to put at least one set of observations into the project. Is there an easy way to find those observations?

2

Sure “not_in_project=”

3

Adding on to @marina_gorbunova, the thread on How to use iNaturalist’s Search URLs - wiki part 1 of 2 is super helpful!

4

Thanks! Took me some fiddling to get the details right, but then it worked.