appearance bantams birds black-boned-chickens breed broody calm chicken Chinese-silkies chook color colour companions companionship docile farm farmyard feathers fluffy fowl friendly hen hens perch perched perching plumage poultry rest resting scruffy silkens Silkie silkie-bantam silkies silky sleep sleeping together white bantam fluffy plumage pair Rooster soft adult bird crested domesticated England english Great Britain head immature quills Sussex ugly young