Black sex link chicks

[korlia]

Hi Guys I need some input. I am very new to chickens. I stay in RSA, my one pekin bantam went broody and the only fertilized eggs I could get was from a local egg supplier who free ranges his hens together with the roosters. He has buff Orpingtons as well as Koekoek. A Koekoek is an indigenous breed of chicken to South Africa. The breed originated from crossing black australorp roosters with white leghorn hens and then later on also introduced Barred plymouth rock roosters. Mostly trying to keep as much of the black australorp genes as possible. As far as I understand the Koekoek therefor is a sex link chicken, right?

So here follows the rest of my question. When the eggs hatched I had 2 clear buff orps, nice fluffy light brown little bundles. Then the other 2 that hatched were mostly black but they also had a bit of brown markings, like for instance the one has brown spots in the face and a bit of brown on the one wing. Both have brown or light coloured markings on their heads. So I suspect ( with my very limited knowledge) that they could maybe be a cross between a buff orp and a koekoek. I want to know if I would still be able to sex the chicks in the same way that I would if they where black sex link chicks, or does the spot on the head mean nothing once it is a possible further cross?

So in simple can I sex a black sex link chick crossed with a buff orp in the same way I would if it was just a black sex link chick?

 

[nicalandia]

Quote:
Only if the black Barred bird is the female, cross with a BO this would produce black sexlinks.. females would be all black at hatch and males will have a headspot

 

[korlia]

Quote: SO if they have more markings than the headspot, like on the bum and a bit on the wing there is a possibility that the barred was the male and that it therefor is not a BSL? So I should ignore the headspot for purposes of sexing? DO I understand you correctly?
If it was a barred female then the males would have been all balck only with a headspot and the females all balck?

 

[korlia]

I dont know if you can see clearly from the pic, but look at the last black chick. He has other markings also?

 

[nicalandia]

SO if they have more markings than the headspot, like on the bum and a bit on the wing there is a possibility that the barred was the male and that it therefor is not a BSL? So I should ignore the headspot for purposes of sexing? DO I understand you correctly?
If it was a barred female then the males would have been all balck only with a headspot and the females all balck?

I will make it simple.. Headspot regardless of other markings means a Male chick, chicks without headspots regardless of other markings are females, but they have to be mostly black, yellow chicks dont count

 

[korlia]

Ok, I understand now. Thanks!!

 

[1redhen]

Oh my! So this means I have 1 male.