It was Friday afternoon and she and her friends were driving to visit her parents when they suddenly spotted a massive storm-cloud hovering over the sky in Sorocaba, a city in the Brazilian state ...

It was Friday afternoon and she and her friends were driving to visit her parents when they suddenly spotted a massive storm-cloud hovering over the sky in Sorocaba, a city in the Brazilian state ...

No... these aren't storm clouds. They're tiny songbirds known as starlings. Starlings flock together in thousands. Their shifting movements are called "murmurations ...