Wolf that is very cool. I have tried garnering the trust of some crows at our farm... with no luck thus far. They really are very intelligent.
Agreed with your ‘flock of birds’ analogy- My wife and I experienced a murmuration once while in the garden with a constant rising, falling and (from my perspective) a series of random movements all around us. Touching down for a moment only to rise and flit about again, beautiful choreography. It went on for nearly 10 minutes, we had stopped what we were doing and watched in silent amazement.
Apparently the “science” behind it is each individual bird is aware of the others directly around it and they maintain a safe distance... but as a collective, the mystery behind it still remains.
And there I go flitting off topic again.