Search observations for threatened species

I see that INat matches observations with threatened species information, presumably from IUCN.
Would it be possible to allow this information be searchable?
Both in own submitted observations and observations in projects.

Would this work for you?

You can filter by project, etc as well.

Just add &threatened=true to your search url.

Please note due to geoprivacy concerns, projects are not guaranteed to have any or all threatened species within them (or at least ones whose geoprivacy is set to be obscured). This is intentional behaviour, not a bug.

EDIT - see we were writing an answer at the same time.