Sex link olive eggers

[smom625]

Will all types of marans rooster crossed with legbar hen produce sex link chicks? I’ve got splash and birchen marans roosters over legbar. 4 hatched so far, no white dot. I’m not that lucky, right?

 

[Lady of McCamley]

In my experience, (using Barnevelder over Cream Legbar) the white dot doesn't always show up well if the down color is light as well. Sometimes it is a whispy streak....but it IS there....you just have to look really close.

I've worked with a splash Marans hen, and her offspring were either blue or black against a brown based bird. Blue down can hide white dot-streaks.

I should think the Birchen however would be dark enough base that the barring dot would show well.

You can double check on the genetics calculator.
https://kippenjungle.nl/Overzicht.htm#kipcalculator

 

[smom625]

In my experience, (using Barnevelder over Cream Legbar) the white dot doesn't always show up well if the down color is light as well. Sometimes it is a whispy streak....but it IS there....you just have to look really close.

I've worked with a splash Marans hen, and her offspring were either blue or black against a brown based bird. Blue down can hide white dot-streaks.

I should think the Birchen however would be dark enough base that the barring dot would show well.

You can double check on the genetics calculator.
https://kippenjungle.nl/Overzicht.htm#kipcalculator

I can’t find my breeds on there

 

[smom625]

I can’t find my breeds on there

Rather, I guess I don’t know what color a cream legbar would be

 

[Lady of McCamley]

Cream Legbar is a barred bird, so I ran it both barred/cuckoo and red barred because it is a unique genetic factor.

It is based on the Gold Legbar which was a cross of Brown Leghorn (father) over Plymouth Barred Rock (mother)...so that would be your "barred/cuckoo" genetics.

However on TOP of that a cream modifying gene was introduced, which, as I understand it modifies the red tones, especially at hackles, to a silvery cream color rather than red.

I must admit I do not have all the genetics figured out on the Cream Legbar yet, as it seems a bit complicated, and my line (from a hatched breeders egg, that survived a raccoon attack) seems to be more gold based than cream, though my last line (killed by the raccoon) was cream.

However, it is barred that is dominant. I have continually seen my males of the crosses come out black and white barred with red-gold bleed through at the saddle....so I run them as "barred/cuckoo."

My thoughts.
LofMc

FYI: https://poultrykeeper.com/chicken-breeds/legbar-chickens/

From the Cream Legbar Breedbook, the genetics are considered:
CL genotype is e+/e+, s+/s+, ig/ig, B/B or B/w, w/w ( yellow skin), Id/Id or Id/w ( dermal melanin inhibitor), Cr/Cr (crest), genes for white ear lobes, O/O (blue egg shell), there are other genes that deal with brown egg shell color- one is an inhibitor of brown egg shell color they may carry the gene, rapid feathering k+/k+ or k+/_W, genes for reddish bay eye color. They also carry autosomal red.

You can see the genetics discussion on page 15 and 16 here:
https://creamlegbarclub.com/wp-content/uploads/2017/04/CreamLegbarBreedGuide.pdf