Just before the breeding season the birds all flock up together.

As the breeding season gets underway the dominate birds mate as many respective hens as possible.

As time goes on, those covered hens will go to lay their eggs & nest, which prompts the flocks to start to break-up into smaller groups.

The lesser toms and jakes who are beat up on by the dominate birds, start to look for the single & small groups of hens.