Started as 7 lights coming from lower horizon, moved up formed a triangle and then up and disappeared.

Was outside looking at an owl that had just flew over and landed on the powerline. I turned around because I heard something in the bushes and I saw a bunch of unusual lights in the sky. I counted 13 at first as they were moving up from the horizon and then stalled for a moment, twinkled a bit, moved some more and then eventually went higher and would disappear. As they were disappearing, new lights were slowing appearing from the same spot on the horizon. Eventually, they all disappeared one at a time. They were also twinkling from dim to bright as they hovered. They appeared as bright orange, I could not make out a specific shape.
The owl let out a screech and a hoot and flew low just above my head just after I noticed the lights.