I have a mixed flock my Americana Hen decided to sit on some eggs and she had these a while back. Im guessing leghorn and americana? But not sure on the male/female part. Can someone help me? Also how long should I wait to mix them back with the large flock. I have had them with the mom separate all this time. Now the mom decided again to sit on some eggs and broody? Should I leave her and let her go again or try and break her and mix them all together with the rest? Are they ready to mix?