6 glowing orbs floating silently just above the houses.

My wife and I were out on our deck late that evening when we notices 5 orange orbs or egg-shaped objects floating 10-20 feet over the house across the street.  I quickly went inside and grabbed my phone and started recording video.  They were moving in the direction of our house slowly and making zero noise.  My daughter came outside and also witnessed this.
They floated over our house in a single line one behind the other.  When they reached our roof, the 5 orbs formed a circle.  After forming a circle, they lined up behind one another again and made their way towards the waterway.
As I continued to watch them, my wife noticed a sixth orb hovering not 5 feet over our house.  It acted like it was curious about us.  Our dog was barking at the object.  It then hovered there silently about 10-20 seconds and then rejoined the other five  orbs.  As they all floated away, they ceased to glow and disappeared from view.