Sparkling golden objects twirling in spiral formation

I was sitting at a traffic light and noticed a seagull in the sky. Then much higher up in the sky I saw a group of small golden lights. At first I thought they were a flock of birds. But then noticed the formation and pattern was more of a spiral, and the reflection of the gold color was so bright and shiny they couldn't be birds. They disappeared then reappeared a short distance away. Then disappeared again. This was in full daylight and they were swirling around for about a minute.