Clouds of midges.
Temp dropped like a stone Thursday to 0 degrees, and has stayed pretty cool since, but yesterday was sunny, and today is sunny and in the teens, and the spring bugs have lost their minds and birthed themselves early. They're everywhere in tightly packed clouds, sticking to your clothes, in your hair, up your nose.
And if I didn't know better, I'd say they chased away the pigeons. I don't know which side to root for.