there’s not a great way to look for interactions in iNaturalist in bulk, unless the relevant observations with interactions have observation fields associated with them. (unfortunately, the use of observation fields is uncommon, and they aren’t always consistently applied.)
for an example of a query that includes a filter on an observation field, this would give you parrots eating sea almonds: https://www.inaturalist.org/observations?place_id=any&taxon_id=18874&verifiable=any&field:Eating=62821
and this would give you parrots eating anything:
https://www.inaturalist.org/observations?place_id=any&taxon_id=18874&verifiable=any&field:Eating