Saw red floating orbs floating over my house in Lauderdale.

I was sitting on the back porch, when I saw a red light floating across the sky.  I didn't think anything of it at first because my house is right next to the airport.  However, as it got closer I realized it was not an aircraft from the airport.  It was flying relatively low, and it was completely silent.  It floated over the house and then disappeared.  Two more floating in the same path came by within five minutes.  I saw three total.  I wasn't able to completely focus on it as it flew over.  It appeared to be a red glowing orb that twinkled.