Oklabar info?

[Chicks n stuff]

Autosexing breeds
If you have ever done an internet search for autosexing chicken breeds, you have probably seen a laundry list of chicken breeds that end in "bar", with a few more unique names to boot. This is because there have been many attempts at making an easy to sex, autosexing chicken breed. Despite being on a list for autosexing chicken breeds, some of the breeds listed are less than autosexing. This is because most of these breeds are only using the B(sexlinked barring) gene, as the only autosexing trait. Most of these breeds don't hold a candle to a modern day crele breed, and that's probably why they're mostly extinct. People didn't always know that e+(duckwing) was THE BEST foundation color to put B(sexlinked barring) over. So, people just kinda tried making a autosexing breed using several different formulas, some formulas were successful and others were just okay.

1. The Amrock is essentially no different from the Barred Plymouth Rock. In appearance it has very clean barring, very similar to the Heritage Barred Plymouth Rocks you see in America, and the name Amrock is supposed to stand for "American Rock". Any autosexing properties of this breed has are no different than the autosexing qualities of the Barred Plymouth Rock.

2. The Ancobar, this breed is a combination of the Ancona and Barred Rock. One would think merely adding the mo(mottling) gene would do nothing to enhance any autosexing properties of the B(sexlinked barring) gene. But, supposedly having mottling and sexlinked barring together enhances the autosexing properties of B(sexlinked barring). The Ancobar is supper extinct and I can't find much information about its origin, but it's super cool.

3. The Barnebar, the name implies that this breed was created by breeding the Barnvelder with the Barred Plymouth Rock. But that's all I have to go on, because I can't find any information on this breed. But, the Barnvelder has a eb(partridge) foundation color, so it's likely this breed wasn't particularly easy to sex, or the pattern genes that contribute to the double-lacing of the Barnvelder, namely Ml(melanised), and Pg(pattern gene) act to enhance the autosexing properties of sexlinked barring.

4. The Brockbar was created by combining the Buff Plymouth Rock and the Barred Plymouth Rock. The Brockbar likely had a wheaten foundation color, so this breed probably wasn't as easy to sex as day old chicks as our modern day crele breeds are.

5. The Buffbar, this breed was created by breeding the Buff Orpington and the Barred Plywood Rock. This breed would have had a wheaten foundation color, so this breed probably wasn't easy to sex as day old chicks, when compared to our modern crele breeds.

6. The Cambar, for some reason this breed is called; "the very first autosexing breed created", to make this breed, Barred Plymouth Rock roosters were put over Campine hens, the females offspring were then put under Campine roosters, and there were several more back crosses the Campine. They bred to retain the sexlinked barring and the autosomal barring.
I do not know how easy it would have been to sex day old Cambar chicks, as they would have had a ER(birchen) foundation color, considering the Campine breed makeup is;

Campine
Phenotype: black patterned gold transverse penciled, henny feathered, white-skin, slate-shank, single comb.
Genotype:
ER/ER(birchen)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
r+/r+,p+/p+(single comb)
W+/W+, id+/id+(slate-shank)
Hf/Hf(henny feathered)
Lays cream eggs
Not Autosexing

The makeup of the Barred Rock is:

Barred Rock
Phenotype: black unicolor, barred, yellow-skin, yellow-shank, single comb.
Genotype:
E/E(dominant black)
S/S(silver)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Somewhat autosexing

So, just to sum this up, they mixed an autosexing breed known as the Barred Plymouth Rock with a breed called the Campine, which is NOT autosexing at all and then they called the prodigy the first autosexing breed. Good for them.
Now let's please acknowledge the real reasons the Cambar was a monumental success. The Cambar proved that white barring was sexlinked barring, and that black barring was autosomal. The autosexing capability of the Cambar was linked to, an interaction between the melanizing effects that the autosomal barring has on chick down, and melanin inhibiting effects of sexlinked barring, resulting in lighter down on male chicks homozygous for sexlinked barring.
After creating the Cambar, Punnett, who was a British geneticist, created Legbars and the Crested Cream Legbar.
The breed makeup of the Cambar should be;

Cambar
Phenotype: black patterned gold, transverse penciled, barred, henny feathered, white-skin, dusty yellow-shank, single comb.
Genotype:
ER/ER(birchen)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
B/B,or B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
W+/W+, id+/id+(dusty yellow-shank)
Hf/Hf(henny feathered)?
Lays cream eggs
Autosexing

7. The Cobar is likely a Cochin based crele breed. It was described as an autosexing Cochin. But, I couldn't find much information on the breed.

8. The Dorbar was created by mix Dorkings and Barred Rocks. The Silver Gray Dorking still exists today, their breed makeup is;

Silver Gray Dorking
Phenotype: black patterned silver, duckwing, white-skin, white-shank, single comb.
Genotype:
e+/e+(duckwing)
S/S(silver)
r+/r+,p+/p+(single comb)
W+/W+, Id/Id(white-shank)
Po/Po(extra toes)
Lays cream/tan eggs
Somewhat Autosexing

The Dorbar can be silver or gold, but if you were to breed them today you would have to go with silver, as the Barred Rock is silver and the only Dorking color left is silver. The breed makeup of the Dorbar would have been;

Dorbar (crele Dorking)
Phenotype: black patterned silver or gold, duckwing, barred, white or yellow-skin, white or yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
S/S(silver) or s+/s+(gold)
B/B, or B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
W+/W+, or w/w, Id/Id(white or yellow-shank)
Po/Po(extra toes)
Lays cream/tan eggs
Autosexing

9. The Hambar, this breed was made from first crossing a New Hampshire Red rooster to a barred rock hen. You keep the male offspring from this pairing, and you breed the male with the best sexlinked barring, breed them to New Hampshire Red hens. Keep the barred females, and the barred males and breed them together, breed until males are homozygous for B(sexlinked barring).

10. The Hampbar was created using the Redbar and the New Hampshire Red.
Hampbars are currently being sold at Hoover's Hatchery. So, this breed is actually still alive. Their breed makeup is;

Hampbar (Crele RIR/NHR)
Phenotype: black patterned red duckwing columbian barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)or Db/Db(darkbrown)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing

11. The Niederrheiner, was bred from Buff Orpingtons, North Holland Blues, Barred Rocks, Malines, and possibly other breeds. This breed lost its autosexing abilities, the ones being sold today are supposedly not autosexing at hatch.

12. The Norske Jaerhon, the only chicken breed that is considered truly Norwegian in origin. This crele breed has some form of sexlinked dilution barring, similar to the 55 Flowery Hen. The Norske Jaerhon's breed makeup is;

Norske Jaerhon
Phenotype: black patterned gold or silver duckwing barred(sexlinked dilution), very white roosters, yellow-skin, yellow-shank, single comb.
Genotype:
eb/eb(partridge)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
Bsd/Bsd and Bsd/-(sexlinked dilution barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays white eggs
Autosexing

13. The Oklabar was created by putting White Plymouth Rock roosters over Rhode Island Red hens, then they breed the first generation cross to each other. Keeping the, Red Barred Columbian males form the second generation, and breeding them to Dark Cornish hens. The offspring from the mating with the Dark Cornish were paired to each other, and bred until the males were homozygous for sexlinked barring. For some context, the sexlinked barring came from the White Rocks, White Rocks were made from Barred Rocks, which obviously have sexlinked barring, and White Leghorns, who are known to have multiple forms of sexlinked barring. And the duckwing comes from the Rhode Island Reds, which are sometimes duckwing based.
It's likely the Oklabar breed makeup was;

Oklabar
Phenotype: black patterned red duckwing columbian, double-laced, barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)
Ml/Ml(melanized)
Pg/Pg(pattern gene)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing

14. The Polbar, to create this breed Plymouth Rock roosters were put over some green legged partridge hens in Poland. It's likely this breed was crele, but I can't find enough information to say what their genotype was with certainty.

15. The Redbar, also called Barred Reds, having also been called the Autosexing Rhode Island Red. Is thought to be the progeny of the Barred Rock and the Rhode Island Red.

Redbar (Crele Rhode Island Red)
Phenotype: black patterned red duckwing columbian barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing

16. The Whealbar, this breed has been lost to time, even its history is unknown. It's like it never existed.

17. The Wybar was created from mixing laced Wyandottes, barred Rocks and Brussbars. This breed still exists today, but it's super rare. Using reverse engineering of the breeds used in the creation of the Wybar, and by looking at pictures of this breed I have determined that the Wybar breed makeup is likely;

Wybar
Phenotype: black patterned, silver, laced, barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(Columbia)
Ml/Ml(melanised)
Pg/Pg(pattern gene)
S/S(silver)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays cream eggs
Autosexing

As always thank you for reading! Hope this was insightful!

Oklabar
https://shareok.org/bitstream/handle/11244/302279/oksd_TB_T-0062.pdf?sequence=1&isAllowed=y

Redbar
https://www.sciencedirect.com/science/article/pii/S0032579119509208

Autosexing chickens
https://bitchinchickens.com/2020/08/20/autosexing-chickens/

Autosexing, dorbar
http://autosexing-poultry.co.uk/breeds.htm

Autosexing chickens
https://jsh.bravesites.com/autosexing-

Amrock
https://www.domesticforest.com/amrock-chicken/

THE AUTOSEXING ANCOBAR, Cambar
https://academic.oup.com/jhered/article-abstract/32/7/221/774649

The Ancobar
https://www.merriam-webster.com/dictionary/Ancobar

Brockbar
https://www.poultryclub.org/breeds/...eated in the 1940s but,and a male Barred Rock.

Brockbar, Brussbar, Buffbar
https://www.tapatalk.com/groups/thebreed/brockbar-brussbar-and-buffbar-t253.html

Hampbar
https://hoovershatchery.com/hampbar.html

Cambar, Oklabar
https://www.european-poultry-scienc...-hatching,QUlEPTQ1OTk5NjcmTUlEPTE2MTAxNA.html

Polbar
https://www.domesticforest.com/polbar-chicken/

The Norske Jaerhon,
https://herditall.net/chickens/jaerhon/
The Norske Jaerhon,
https://morningchores.com/norwegian-jaerhons-chicken/

Wybar
https://www.poultryclub.org/breeds/chickens/soft-feather-heavy/autosexing-wybar/

The Hambar,
https://eggsellent.com.au/offers/new-south-wales/hambar/

Cobar
https://www.fwi.co.uk/news/breeders-happy-accident-produces-colourful-way-to-sex-day-old-chicks

Niederrheiners
https://www.uberchicranch.com/

The Dorbar,
https://www.poultryclub.org/breeds/chickens/soft-feather-heavy/autosexing-dorbar/

 

[Chicks n stuff]

Having a crele good time

Crele sometimes called Creole is my absolute favorite color verity. Crele is a beautiful combination of the foundation color e+(duckwing), which I love, and B(sexlinked barring), which I also love. Crele is the easiest color to sex, and it's the color of many very popular breeds, and some very rare breeds, Welbars, and Bielefelders, to name a couple. Also before anyone can say that Welbars or one of the other breeds I'm going to name later on aren't a recognized breed, I'd just like to point out that the APA/ABA hasn't recognized a single crele breed. Crele is an accepted color verity for the Old English Game. But, the Bielefelder and the Crested Cream Legbar are just as unrecognized here in America as any other crele breed. That said, don't hate on the crele breeds, it's not their fault they're unrecognized, the APA doesn't have any reason not to recognize them.

Unrecognized or not, crele is a very awesome color, it is a combination of genes that have autosexing properties, that create a very distinct look for the adult chickens and produces chicks that are very easily sexed by the color of their chicks down, with males being distinctly lighter in color and females having a darker chipmunk like stripe down their back. Crele is always duckwing and sexlinked barring, but there are at least three genes that specifically effects the sexual dichromatism of down feathers, and possibly a fourth gene known to have autosexing potential. I will briefly go over the three genes known to have autosexing properties and I will also look at the gene that might have autosexing properties. The four genes being e+(duckwing), B(sexlinked barring), ig(cream) and the one in question Mh(mahogany).

Looking at duckwing by itself; e+(duckwing/wild type) is a E series base color that has auto sexing properties. The female chick down has darker stripes and the the females also look to be wearing black eyeliner. This gene is not sexlinked. But, this gene has high sexual dimorphic features that cause visual differences between males and females, including in their down feathers they have as chicks. Welsummers are red duckwing, and most Brown Leghorns are gold duckwing, and that information will be important later.

Now to briefly go over sexlinked barring; B(sexlinked barring/cuckoo) is a gene mutation that causes white stripes on the feathers of the birds carrying this gene. This gene has both auto sexing and sexlink potential. It is a sexlinked gene, which is carried on the Z sex chromosome, as female chickens are ZW they can only ever be hemizygous, whereas males can be homozygous or heterozygous as they two Z sex chromosomes. Males that are homozygous for sexlinked barring will have a larger white head spot and be lighter in color than their hemizygous female counterpart. The Barred Rock is the most well known breed that has sexlinked barring, the makeup of the Barred Rock is:

Barred Rock
Phenotype: black unicolor, barred, yellow-skin, yellow-shank, single comb.
Genotype:
E/E(dominant black)
S/S(silver)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Somewhat autosexing

But sexlinked barring is pretty common, even the White Leghorn is known to have multiple kinds of sexlinked barring hidden under the white genes they carry. Most White Leghorns are I/I(dominant white), but some lines are c/c(recessive white), while other lines of White Leghorn carry both white genes. White Leghorns are a very old breed and they carry very many secret genes beneath their white.

The next gene with autosexing properties is, ig(cream), it is a gold inhibitor. ig(cream) lightens the chick down of male chicks. This gene is not sexlinked, however it express high sexual dimorphism in male chicks down feathers. This gene is carried by the Crested Cream Legbar, a breed that will be discussed later.

And lastly, Mh(mahogany/red), which is a autosomal, dominant gene, that darkens gold, and might have enhancing effects on the sexual dimorphic properties of e+(duckwing), and possibly other foundation colors as well. The Welsummer is known to have the Mh(mahogany/red) gene, a Welsummer's breed makeup is:

Welsummer
Phenotype: black patterned red duckwing, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Mh/Mh(mahogany/red)
s+/s+(gold)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays dark and freckled brown eggs
Autosexing

As I am so familiar with the Welsummer the first crele breed I will discuss is the Welbar. The Welbar was created by breeding the Welsummer and the Barred Rock together, but the Welbar is more Welsummer than Barred Rock. And all crele breeds have more of the e+(duckwing) based breed bred into them. It is simply the nature of the creation of crele that, the crele prodigy will end up being a much higher percentage of the duckwing based predecessor, for example most Welbars are about 95% Welsummer, and a Welbar can only really be as little as 75% Welsummer.
The makeup of the Welbar breed:

Welbar (crele welsummer)
Phenotype: black patterned red duckwing barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays freckled brown eggs
Autosexing

The Bielefelder was created using the Welsummer, the Cuckoo Malines, the Cuckoo Malines is a Dutch breed. The Cuckoo Malines was created by mixing local cuckoo-patterned farm chickens with various different types of imported Oriental chicken. With the Jersey Giant. Cuckoo Malines lay white eggs.
The Cuckoo Malines breed makeup is:

Cuckoo Malines
Phenotype: black unicolor, barred, white-skin, white-shank, single comb.
Genotype:
E/E(dominant black)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
W+/W+, Id/Id(white-shank)
Pti/Pti(ptilopody/feathered legs)
Lays white/cream eggs
Somewhat autosexing

It's very likely the Barred Rock was used in the creation of the Bielefelder as well. Like the Welbar the Bielefelder has to be about 75% Welsummer, but they are likely a higher percentage.
The makeup of the Bielefelder:

Bielefelder (basically a Welbar)
Phenotype: black patterned red duckwing barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing

The Legbar was created using the Brown Leghorn and the Barred Rock, the Brown Leghorns used were e+/e+(duckwing) based.

Legbar (crele leghorn)
Phenotype: black patterned gold duckwing barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays white eggs
Autosexing

The Crested Cream Legbar was created using blue egg laying chickens from Chile, Golden Penciled Hamburgs, Buff Leghorns, Brown Leghorns and White Leghorns. Barred Rocks were NOT used in the creation of the Crested Cream Legbar. The sexlinked barring comes from the White Leghorn instead. The e+(duckwing) came from the Brown Leghorns and the crest, the gold inhibitor, ig(cream), and the blue egg laying gene O(blue egg shell), all came from the blue egg laying chickens from Chile. The Crested Cream Legbar's breed makeup is:

Crested Cream Legbar
Phenotype: black patterned yellow/lemon/cream duckwing barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
ig/ig(gold inhibitor)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
O/O - (homozygous for blue eggshell)
Lays light blue/blue-green eggs
Autosexing

The 55 Flowery Hen was created by mixing Brown Leghorns and White Leghorns. The 55 Flowery Hen's mottling and rare sexlinked dilution barring that, makes the males nearly solid white, this rarer form of sexlinked barring comes from the White Leghorns. The e+(duckwing) foundation color comes from the Brown Leghorn. The 55 Flowery Hen can be silver or gold.
The 55 Flowery Hen's makeup is:

55 Flowery Hen (crele mottled leghorn)
Phenotype: black patterned gold or silver duckwing barred(sexlinked dilution) mottled hens, almost solid white roosters, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
s+/s+(gold) or S/S(silver)
Bsd/Bsd and Bsd/-(sexlinked dilution barring)
mo/mo(mottled)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays white eggs
Autosexing

The Crele Old English Game was simply made by, mixing the Golden Duckwing Old English Game, with the Cuckoo Old English Game.

Crele Old English Game
Phenotype: black patterned gold duckwing barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays cream eggs
Autosexing

The Penedesenca, and the Crele Penedesenca, were bred from Spanish barnyard chickens. The makeup of the Crele Penedesenca is:

Crele Penedesenca
Phenotype: black patterned red duckwing barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
W+/W+, id+/id+(yellow-shank)
Lays dark brown and freckled eggs
Autosexing

Incase anyone was wondering the Penedesenca, also called the Partridge Penedesenca, is in fact eb(partridge) and is NOT autosexing! The Penedesenca breed makeup is:

Penedesenca
Phenotype: black patterned red partridge, white-skin, slate-shank, single comb.
Genotype:
eb/eb(duckwing)
Mh/Mh(mahogany/red)
s+/s+(gold)
r+/r+,p+/p+(single comb)
W+/W+, id+/id+(slate-shank)
Lays very dark brown eggs
Not autosexing

I would like to talk about the Rhodebar. the Rhodebar was created by mixing the Rhode Island Red and the Golden Brussbar, now commonly referred to as simply Brussbars, which is because there weren't any other color variations being bred, the Silver Brussbars went extinct. And you have probably never heard of the Brussbar, that's because it's simply not bred anymore either.

Most people think the Rhodebar was created from Barred Rocks and Rhode Island Reds. This is because the Barred Rock is a component in the creation of the Brussbar, in the Brussbars was made by mixing the Barred Rock and Brown Sussex. And it seems that the Brown Sussex could have been e+/e+(duckwing), s+(gold), or eb/eb(partridge), s+(gold). I think it's likely that, as we can observe in modern day Brown Leghorns, that most Brown Sussex at the time might have also been e+/e+(duckwing), as a foundation color. But regardless of how common duckwing was as a foundation color in the Brown Sussex at the time, it is clear that the a duckwing based Brown Sussex line was used in the creation of the Brussbar. The breed makeup of the Brussbar is:

Brussbar (Crele Sussex)
Phenotype: black patterned gold duckwing barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing

The breed makeup of the Rhodebar is:

Rhodebar (Crele Rhode Island Red)
Phenotype: black patterned red duckwing columbian barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing

The Rhodebar likely got the e+/e+(duckwing) foundation color from the Golden Brussbar, but it must also be noted that, some lines of Rhode Island Red are e+/e+(duckwing), it is true that most Rhode Island Reds are eWh/eWh(dominant wheaten). However, the Rhode Island Reds that have striped chick down are duckwing, this can be concluded by looking at the chick down, wheaten chicks are NOT striped, and duckwing IS striped. Furthermore, duckwing is the only foundation color that has consistent sexual dichromatism in down feathers. I've had personal experience with the Rhode Island Reds that have striped down as chicks, and they are clearly e+(duckwing). Which would explain why so many people are constantly claiming that they have Rhode Island Reds that can be sexed by their day old chick down. Their claims are that the female Rhode Island Reds chicks are darker and/or have a darker stripe and males are lighter with either NO stripe or a very faint stripe.
In my personal experience there are three types of Rhode Island Reds chick down types; 1. The males and females look the same, and they do NOT have any stripes, these are the eWh(wheaten) Rhode Island Reds. 2. Females are darker and might have a faint stripe, while the males have NO stripe and are slightly lighter, I'm unsure about these, but it's possible that the Mh(mahogany) gene is responsible for the slight difference between males and females. 3. The female Rhode Island Reds chick are darker and they have a stripe, while males are lighter and either have a faint stripe or NO stripe at all, these are the e+(duckwing) based Rhode Island Reds.
Also you wouldn't be able to tell the difference between a wheaten based Rhode Island Red, and a duckwing based Rhode Island Red when they are adults. The Co(Columbia) pattern restriction gene would make the two foundation colors look almost identical, and the Mh(mahogany) gold enhancement gene would serve to further hide any differences between the two.

Rhode Island Red
Phenotype: black patterned red columbian, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)
Mh/Mh(mahogany/red)
s+/s+(gold)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing

Rhode Island Red
Phenotype: black patterned red columbian, yellow-skin, yellow-shank, single comb.
Genotype:
eWh/eWh(dominant wheaten)
Co/Co(columbia)
Mh/Mh(mahogany/red)
s+/s+(gold)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Not autosexing

As always thank you for reading! Hope you enjoyed learning about crele, and crele breeds! Enjoy your day!

APA official breed registry
https://amerpoultryassn.com/accepted-breeds-varieties/

Chicken calculator
http://kippenjungle.nl/breeds/cross...N0mcnD9VPbLrSAxhUbYBsbptsUipthDbkE-7siYH9apWY

Autosexing breeds
https://jsh.bravesites.com/autosexing-

Autosexing breeds
https://www.thefeatherbrain.com/blog/autosex-chicken-breeds-hatcheries

Striped down on RIR chicks
https://www.mdpi.com/2073-4425/13/9/1511

Brussbar, Rhodebar
https://poultrykeeper.com/chicken-breeds/rhodebar-chickens/

Brussbar
https://www.poultryclub.org/breeds/chickens/soft-feather-heavy/autosexing-brussbar/

Brussbar
https://www.rbst.org.uk/brussbar

Brown Sussex
https://poultrykeeper.com/chicken-breeds/sussex-chickens/

blue egg laying chickens from Chile
https://creamlegbarclub.com/wp-content/uploads/2017/04/History-of-the-Cream-Legbar-1.pdf

Crested cream legbar
https://www.getstronganimals.com/post/all-about-the-cream-legbar-breed

The 55 Flowery Hen
https://www.thebigspoonhomestead.com/articles/blog-post-title-one-ey7gp

Holland
https://livestockconservancy.org/heritage-breeds/heritage-breeds-list/holland-chicken/

Crele Penedesenca
https://www.thefeatherbrain.com/blog/penedesenca-chickenso

The Flemish Cuckoo
http://www.aviculture-europe.nl/nummers/15E03A15.pdf

Malines
https://greenfirefarms.com/malines.html