Flight Crew Air Transport Pilot (ATP)
Distraction; Situational Awareness
Conflict NMAC
General None Reported / Taken
Human Factors; Airspace Structure
While getting radar vectors to runway 4 after a runway change into LGA we encountered a possible UAV at 8;000 feet. There was no apparent vertical movement in the object to appear like a balloon rising. The object was black in color; and maybe no more than a few hundred feet horizontal separation of our aircraft [off] the left side. We were flying an easterly heading over New Jersey near the New Jersey Turnpike exit 8A.
Air carrier Captain reported a UAV at 8;000 feet near Jamesburg; NJ while on vectors to LGA Runway 4.