OK, iNaturalist now has an Alive or Deadannotation for observations within Animalia. The possible values for this annotation are:
Alive - meaning that evidence shows the organism is alive and shows no signs of imminent death.
Dead - meaning that evidence shows the organism is dead or shows signs of imminent death.
Cannot Be Determined - meaning that the evidence shown does not allow one to determine if the organism is alive or dead (eg a dropped feather or a snake shed)
And there are keyboard shortcuts for this annotation in identify:
We decided against applying this annotation to plants as it’s likely many perennial plants seen in winter might be erroneously marked as Dead, as brought up here.
Speaking of plants, as @fffffffff noted, the Budding option under Plant Phenology has now been changed to Flower budding to make it clear that the annotation only refers to flowers. Like the other changes noted here, it should all be available for translation on CrowdIn.