Yeah man. So if you use the eBird app or website to track your birds you see (use Merlin bird id for id help) Cornell university actually maintains that and uses it. These sites and apps are highly highly recommended and almost mandatory if you find yourself doing birding often. Anyways, as you populate you list with sightings and areas you’ve found birds they can map out so much. Stuff like habitats, ranges, changes in these, population sizes, migration timings, and I’m sure there’s more I’m not thinking of. These are all important with human influenced climate change and habitat destruction.