Is there an app or something to figure out what a nearby helicopter is and what the fuck it's doing? Just had one fly by which did two little loops around then continued off on its merry way and I'm fascinated by what it was up to because I'm about 90% sure it wasn't a police helicopter (no ID on the bottom, which cop ones usually have ime) 

 @393f4547 sometimes I manage to catch an N number off the helicopter, and almost always it leads to pipeline or powerline inspection.