Interested in identifying colour pattern, clues to breed background & genetics

Windy_Acres

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So, I hatched these 3 roos last spring. They all hatched from green eggs, and the woman had many, many different breeds of roosters, all roamed together.
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When they hatched, the one in front, Twinkle, was yellow with a couple of black spots, the other two were both chipmunk striped.

Late this summer, I hatched 4 chicks from these guys and my austrolorp (all from 1 hen, the other hen's didn't develop). I hatched 3 that looked just like Twinkle (guessing he's gotta be the dad...), and one that looks just like their Mama (of unknown parentage). So, today, the babies are 10.5 weeks old, and I have a picture of Twinkle from the same age, here:
Twinkle.JPG


Now, here are the four babies (With the sun shining in, the white looks a little grey, but it's very much white, hard to find even a smudge of reddish...)

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Better shot of the roo and one of the pullets:
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And the two white pullets:
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What gives? This is really messing with my brain! I expected something between Twinkle and Australorp black if they're his, and especially the boy to have more colour. I think they're really cool looking, just not what I expected, and I cannot wrap my head around it or even find a breed that looks at all close.... Can someone explain this to me? I know chicken genetics are weird!

And if you see something I'm missing that says it's not 3 girls and a boy, I'd love to know... although if there'a another boy I might just give up, LOL. However, when I pulled out Twinkle's picture from the same age (to the day, coincidentally), and saw how much more developed his wattles and comb were, I wonder if it's possible I got 4 girls, but I know I'm not that lucky. Thinking it's just a spring/fall thing.
 

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You're dealing with dominate white. Dominate white covers black but not gold/buff/red.
Two copies of dominate white will cover all black. One copy will let some black show in small blotches here and there. That why your rooster was yellow with black specks. He carries one copy of dominate white.
The reds come in as chick ages and increase with age that's why it didn't show as a chick.
He has a pattern under the white. Unsure exactly what pattern. Looks maybe gold duckwing/wild type. Like a brown leghorn.
The black hen is extended black which would cover the duckwing pattern with a chance of some bleeding through with age.
Your chicks that are white with black got the dominate black from mom and their dads single dominate white gene.
Your black chick did not receive dominate white from their dad.
That's what looks like is going on to me. No guarantees. As you are aware trying to understand genetics is sometimes tough and sometimes impossible with unknown genetics in the parents.
 
:bowThank you so much, that is much clearer! So, if I have it right, the black and white are at the same site on the gene, and the red is somewhere else, and the pattern is a different place entirely? White is really dominant, but black is sort of, a little co-dominant, not fully recessive, hence the splotches. Presumably the 3 white and black babies all didn't get the red gene, or I'd be seeing some... So the Dad must have had something else there as well? And the pattern only comes out on the red feathers, so since they have none, who knows what they got there.

And the black chick either got a black gene from that boy, or has a different dad...

Am I close? :fl
 
To me the rooster in the middle of the picture is absolutely striking in appearance. Beautiful bird indeed.

Thanks Sourland, I really liked him too. He was the one I kept showing off to everyone when he was little- beautiful from his first feathers. It was a lot of fun watching the mixed breeds grow- they changed so much. They were really good boys. Sadly, I only keep a few hens for eggs, so they became... Really good boys ;)
 

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