B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Other / Unknown
Conflict Airborne Conflict
Air Traffic Control Issued Advisory / Alert; Flight Crew Became Reoriented
Human Factors
Upon checking on with LGA tower; we were issued an unauthorized unmanned drone activity at 1000 feet.  When we approached 1000 feet; we were on the lookout for this drone.  While scanning the sky; something caught my eyes at the 2 o'clock position low.  I shifted my focus towards the object; and sure enough; there was a white quadcopter maneuvering below and to the right of our fight path.  The sighting was only a fraction of a second; but I was able to make a mental note of the position due to the unique shape of the condos/apartment buildings below.  Our approach and landing was normal and uneventful.  There was no collision danger and no evasive action was taken.  Once we shut down at the gate; I checked the position of the condo buildings and obtain a road intersection via Google Maps Satellite view.
B737 First Officer reports sighting a drone; first reported by LGA Tower; 3 NM NNE at 1;000 feet during approach to Runway 22. No evasive action was required.