Your hen looks like a Cream Legbar. I would expect a Wellsumer cross to have more red on the earlobes, a smaller crest, more red in her plumage, and white legs. If she isn't laying blue eggs there was a cross something in her history though. It could have been two generations back (or more).
As far as the sex-linked barring goes, if you use a barred hen, like the suspected legbar x welsummer shown, and a not barred cockerel like your australorp or wyandott then all the male chickes will get the barring from the hen who passes the male chromosome that carries the sex-linked barring and all the pullets will be non-barred having recieved the female chromosome that doen't carry any of the sex-linked genes in chickens.
The Silver Laced Wyandott is the fatter of your chicks. If the Autralop were the father you would have all black chicks (with small white dots on the heads of the males).
Yes, the 5.5 week old looks like a cockerel. In the chick photo he is a lighter body color than the one of the left. The barring gene doesn't dilute the back chick down, but it does dilute the red pigment that makes the red/brown colors in chickens. He looks like a cockerel.
As far as the sex-linked barring goes, if you use a barred hen, like the suspected legbar x welsummer shown, and a not barred cockerel like your australorp or wyandott then all the male chickes will get the barring from the hen who passes the male chromosome that carries the sex-linked barring and all the pullets will be non-barred having recieved the female chromosome that doen't carry any of the sex-linked genes in chickens.
The Silver Laced Wyandott is the fatter of your chicks. If the Autralop were the father you would have all black chicks (with small white dots on the heads of the males).
Yes, the 5.5 week old looks like a cockerel. In the chick photo he is a lighter body color than the one of the left. The barring gene doesn't dilute the back chick down, but it does dilute the red pigment that makes the red/brown colors in chickens. He looks like a cockerel.