If the title is confusing, I apologize. Emergence is a huge focus of my writing and explained in depth elsewhere in the site. A short version is: Emergence is when a new and surprising result emerges from grouping enough of almost anything together. The effect doesn’t resemble the individuals it emerges from. The things being grouped in this video are individual Starlings, the grouping is their seasonal flocking behavior. The emergent effect is the murmuration, the huge, shapeshifting display of their collective flight. No bird is in charge, the effect is bottom up as the individual birds react to each other yet we see what feels very much like a huge excited individual playing in the sky.