I’m curious, why doesn’t this obvious cockerel not have pointed hackle or saddle feathers when my other does?

[Cheekychook12]

He crows, mates and does all roostery things, so I’m curious as to why he still has rounded feathers at 17ish weeks old when my other has had them for over a month?
I added photos of the buff who has pointy feathers
Also a little side question why does my pure black pullet have one half blue half black feather?

Edit: he looks like he might have pointed hackle feathers but on closer inspection they are round

 

[nuthatched]

He has them, they don't start growing in until 16ish weeks. Give it a few weeks.

 

[Cheekychook12]

He has them, they don't start growing in until 16ish weeks. Give it a few weeks.

Alright thanks

 

[Amer]

Also a little side question why does my pure black pullet have one half blue half black feather?

Sometimes birds have errors when they are growing their feathers in that have nothing to do with genetics, other times, it's a somatoc mutation.
Your rooster does have hackles, saddles, and sickles. Some roosters just have rounded ones than others. Plus the amount of testosterone he is producing while growing those feathers will influence their development. Now that the testosterone is at full force his feathers should grow in pointier than others.

 

[Cheekychook12]

Sometimes birds have errors when they are growing their feathers in that have nothing to do with genetics, other times, it's a somatoc mutation.
Your rooster does have hackles, saddles, and sickles. Some roosters just have rounded ones than others. Plus the amount of testosterone he is producing while growing those feathers will influence their development. Now that the testosterone is at full force his feathers should grow in pointier than others.

Alright interesting thank you

 

[Perris]

there are also some 'henny feathered' roos. See e.g.
https://pubmed.ncbi.nlm.nih.gov/2338489/

 

[Cheekychook12]

there are also some 'henny feathered' roos. See e.g.
https://pubmed.ncbi.nlm.nih.gov/2338489/

Mine are pure bred (supposedly) Pekin bantams, so does it happen in other breeds?

 

[Perris]

if it arises from a genetic mistake (one which is now part of the specification for some sebrights and campines) I imagine it could happen elsewhere.

An analogy might help. Most animals (including chickens) can make vitamin C themselves, but we and guinea pigs had a genetic accident somewhere along the evolutionary way and lost that ability, so we and guinea pigs have to get it in our diets, other animals don't. Same mistake in completely different species.

 

[Amer]

Mine are pure bred (supposedly) Pekin bantams, so does it happen in other breeds?

He clearly doesn't have henny feathering (yet). He has neutral feathering but this will most likely transition into regular male feathering. Or, if he by unlikely chance really does have a henny feathering mutation it might change into henny feathering. Henny feathering is also triggered by testosterone.
"Hen-feathering in cocks does not manifest itself unless the feathers are developed under the influx of sexual hormones. The effect on feathering is just the same both whether the hormone comes from the own testicles of the male or from an injection of testosterone.[6][11][12][13]

Chickens of both sexes develop male-type plumage after gonadectomization. Strictly speaking, they develop a neutral plumage with long acute feathers, like those of male plumage, because ovarian hormone is also necessary to develop female plumage.[6]"

Henny feathering is caused by the conversion of androgen to estrogen in the skin. This is why the more testosterone (androgen) a male with the Hen Feathered gene has, the more henny feathered he will be. However, if he is castrated he will actually produce more rooster-like feathering.