who knows ... murmuration can refer specific
Post# of 148183
murmuration
can refer specifically to swarm behaviour in birds, herding to refer to swarm behaviour in tetrapods, and shoaling or schooling to refer to swarm behaviour in fish. Phytoplankton also gather in huge swarms called blooms, although these organisms are algae and are not self-propelled...wikipedia
anyone can look at a straight line down and guess that the next point will be on that line... it doesn't require a conspiracy. It is human behavior.