At approximately 9 -10 p.M on february 4th 2017 on ashburn rd. in whitby,ontario we first observed 4 lights, 3 of which in rough triangle formation viewed head on to west of position while driving. stopped to observe objects and took approx. 1.30 min video. observed objects hovering and moving lazily in no specific flight path. objects(5-6) appeared to pulse and glow with orange/yellow light only when hovering.Would dim considerably when moving. two objects appeared to "exchange" light or energy with one dimming and the other brightening in close proximity. objects also appeared to "fly" in very close proximity on purpose with no apparent regard to their proximity. objects would move from hovering position approx. north of first position and back and forth in an indeterminate manner almost "lazily". observed this for approximately 1.5 hours. dimmer lights appeared to travel north and back to original position. at first we thought the objects could be helicopters or planes but we observed them glowing and dimming and doing odd, lazy movements in sky approx. 50° to 60° over horizon. no spotlights seen. objects appeared to have red and green lights when dim. felt that objects were not normal aircraft due to odd behaviour. was exhilarated at prospect of encountering unknown objects in sky never having seen anything like it before. did not feel any particular negative feelings, just that we were seeing something unusual. attempted to move to higher ground to observe objects more clearly. watched them in two positions over approx. 1 hour. as far as we know we were the only people to observe this event. never truly lost sight of objects and left after 1.5 hours as it was late and we were tired.