The black and white hens which are raising the two chicks seem to be OK with the situation. The two chicks go back and forth between the two mothers. The two mothers haven’t gotten into any big fights. Sometimes if two mother hens get too close, they can get quite testy with each other. Mother hens can be fierce protectors of their chicks. I once had to rescue a chick which got trapped and the mother hen, thinking I was after the chick, attacked me ferociously. She came flying with her claws in front of her. I managed to rescue the chick without getting beaten to death by its mother, but barely.
In the pictures below, you can see one of the chicks go from the black mother to the white one. So far, they haven’t ventured too far from their sleeping spot. They’ve taken the chicks to a sequoia tree close to the chicken yard. It will be interesting to see what happens when they start taking the chicks a long ways from the chicken yard.
Since the two hens bed down side by side at night, they must be used to each other. Chickens mellow out in the evening. Roosters who fight each other during the day, will often roost next to each other at night. It’s as if all is forgiven once the sun goes down.
See also Interracial Lesbian Mothers and Two Mother Hens.