We have a flock of 10 hens: 2 barred rock, 2 RIR, 4 mix, and 2 Americanas. We introduced the Americanas about 3 weeks after the other hens got settled in already. Big mistake! It's not that they are getting bullied, it's just that they're outcasted. Is there anything we can do about it? We feel so bad because when the other hens are taking a dust bath, they're off to the side, lonely and sad. Thank you in advance!