1. Social Behavior of Pigeons: Pigeons are gregarious birds. They socialize through physical contact and pecking. Pecking another pigeon may be a social behavior, which is used to express information such as closeness, friendship or territorial struggle.
2. Class behavior of pigeons: In the pigeon group, there is a social hierarchy. Strong and leading pigeons may peck weak or low-ranking pigeons to maintain order and leadership in the group.
3. Pigeons' competition and pairing behavior: Pigeons will compete and pair during the breeding season, and there may be competition for pecking each other. This is to compete for spouses or drive away other male pigeons to ensure that they can reproduce successfully.