See https://forum.inaturalist.org/t/lets-talk-annotations/627/677 and the relevant journal post it links to. It goes over Construction, Egg, and toher other new values for Evidence of Presence.
If you mouseover an annotation and value, you’ll see its definition. It’s very tempting to add an annotation even if it’s not a great fit, but it’s best to not add an annotation if its definition doesn’t fit the observation. Many observations will not meet an annotation’s definition and that’s OK.