Try this: choose Coordinating, then Play. Switch off Match direction and watch the flock loosen.
Bird count restarts the flock. Other rules change live. Birds leaving one edge return at the opposite edge.
Moving in the same direction —
Neighbours each bird sees —
What to notice
Press Play and watch the trails begin to point together. Switch Match direction off, or reduce how far each bird can see. Keeping space avoids crowding; staying together attracts neighbours. Move your pointer through the flock to create a local disturbance. Different balances produce different kinds of motion.
Why it matters
No bird sees the whole flock or issues a plan. Coordination grows from local responses. A neat formation is not automatically better; the experiment shows how order can emerge, not how human groups should be led.