Everyone can see the coordinates unless the taxon is threatened.
Public coordinates shown as a random point within 10KM of the true coordinates. True coordinates are only visible to you and the curators of projects to which you add the observation.
Coordinates completely hidden from public maps, true coordinates only visible to you and the curators of projects to which you add the observation. Observations with private coordinates will still be used to verify place check lists.
This is supposed to be a Purple Martin house, but I counted 8 House Sparrows nests, 1 European Starling, and just this one Purple Martin. *sigh.*
I'm sure it's pure anthropomorphizing, but the expression on the martin's face just seems priceless.