Double barring sex determination

[Poodlemum]

Does anyone have a picture of a double barred feather? I can’t find any pictures of a singular feather. Even better if you can put it next to a single barred feather

 

[NatJ]

Does anyone have a picture of a double barred feather? I can’t find any pictures of a singular feather. Even better if you can put it next to a single barred feather

I don't personally have any such photos, but I found two websites with feathers for sale, and they do have photos.

https://www.runningbugfarm.com/store/p3504/barred-rock-rooster-feathers-large.html#/
These would be double barred feathers. The live rooster in one photo definitely looks double barred to me.

https://forestpixie.com/product/barred-rock-hen/
These feathers must be single barred, because hens can only be single barred.

The feathers themselves don't look all that much different.
If you are trying to sex chicks by looking for double or single barring, I find it easier to look at whether the bird is overall darker or lighter in color, rather than examining individual feathers.

 

[Chookwagn]

Single barred gene
And double barred genes

 

[Poodlemum]

I don't personally have any such photos, but I found two websites with feathers for sale, and they do have photos.

https://www.runningbugfarm.com/store/p3504/barred-rock-rooster-feathers-large.html#/
These would be double barred feathers. The live rooster in one photo definitely looks double barred to me.

https://forestpixie.com/product/barred-rock-hen/
These feathers must be single barred, because hens can only be single barred.

The feathers themselves don't look all that much different.
If you are trying to sex chicks by looking for double or single barring, I find it easier to look at whether the bird is overall darker or lighter in color, rather than examining individual feathers.

This is exactly what I wanted to know! Thank you, perfect examples. More of a hyperfixation curiosity and geekery question. I used to weave and use babywraps, we’d have such amazing discussions on fibre blends, fabric qualities, etc. Putting that love of tiny details into chickens brings back a bit of that life, I miss it so much. I do have a pair of barred chicks and can’t tell any difference between them But it got me thinking and wondering

 

[Poodlemum]

They look the same, but maybeeeee a slight difference and I just have no idea if I’m looking at the right thing or not

 

[NatJ]

This is exactly what I wanted to know! Thank you, perfect examples. More of a hyperfixation curiosity and geekery question. I used to weave and use babywraps, we’d have such amazing discussions on fibre blends, fabric qualities, etc. Putting that love of tiny details into chickens brings back a bit of that life, I miss it so much.

Yes, sometimes it can be fun to figure out the tiny details, even if you don't "need" to understand them that thoroughly

I do have a pair of barred chicks and can’t tell any difference between them But it got me thinking and wondering

Based on your photos, I think they are both single barred, and I think they are both probably female (basing that on both gender and comb size).

I'm guessing you already know this, but I'll say it just in case:
Females can only be single barred, never double barred because barring is on the Z sex chromosome, and females have chromosomes ZW. With only one Z, they can only have one copy of barring.

Males have ZZ sex chromosomes, so they can be single barred or double barred. Black Sexlink males are single barred, because of the way the cross is set up to produce them. Breeds that are pure for barring have double barred males (Barred Rock, Cuckoo Marans, Dominique, etc.)

 

[3KillerBs]

Even in the single barred hens there can be some variation in overall tone.

Last summer one of my 3 Dominiques was noticably lighter than the other two, leading me to suspect that I had a male. But it turned out that she was indeed a pullet and she lays quite nicely now.

 

[Poodlemum]

Yes, sometimes it can be fun to figure out the tiny details, even if you don't "need" to understand them that thoroughly


Based on your photos, I think they are both single barred, and I think they are both probably female (basing that on both gender and comb size).

I'm guessing you already know this, but I'll say it just in case:
Females can only be single barred, never double barred because barring is on the Z sex chromosome, and females have chromosomes ZW. With only one Z, they can only have one copy of barring.

Males have ZZ sex chromosomes, so they can be single barred or double barred. Black Sexlink males are single barred, because of the way the cross is set up to produce them. Breeds that are pure for barring have double barred males (Barred Rock, Cuckoo Marans, Dominique, etc.)

Ooooh thanks for all the fun facts! I appreciate the time you’ve taken for such detailed answers!