They are in line, they have a specific order, each patiently waits his turn, and each keeps properly "socially distanced" from the others. Usually. Should one get too close to another however, or try to go out of order, physical intervention by the others quickly restores social order and keeps the rules in force. For it is only by adhering to these rules that they can live peaceful lives. The key here for them, is the virtue of patience.
We can learn a lot by watching birds.