what will a black runner and fawn & white runner cross look like?

[AmeraucanaHank]

hi,
I bought these hatching eggs last saturday. And are supposed to hatch on 5/21/22. I just wanted to know if there was a mix of a black/ fawn & white runner duck cross what it would look like?

 

[Callender Girl]

Adorable? I really don't know.

The breeder that I've gotten all my runners from throughout the years advertises that she sells "mutts." I'm still surprised that she can look at 2-day-old ducklings and correctly predict what they will look like as adults. I've had every imaginable coloration from her flocks.

I'd be interested in knowing how yours turn out!

 

[AmeraucanaHank]

@NatJ do you know what they would look like?

 

[NatJ]

@NatJ do you know what they would look like?

First I had to go look up duck genetics...

I found a similar cross in an older thread:
https://www.backyardchickens.com/threads/runner-duck-genetics.436428/page-2#post-21942865
Someone crossed a chocloate with a fawn-and-white, and posted several photos.

And I found a duck genetics calculator.
https://kippenjungle.nl/kruisingEend.html
I clicked the button for "advanced" so I could play with individual genes to check some of what I thought it was telling me.

I assumed the gene labeled "Runner pattern" is what causes the white pattern on the fawn & white.

I find that Fawn has the chocolate dilution and the blue/splash dilution, while the black has neither one. Chocolate is sex-linked, and blue/splash is not.

Do you know which color was the father?

Here is what I think you will get:

If the father is black, and the mother is fawn & white, ducklings should be blue with the white pattern from the fawn & white.

If the father is fawn & white and the mother is black, they will still have the white pattern on all duckings, but the males should be blue and the females "lilac" (that's what the calculator calls the color. I don't know what it looks like-- maybe a darker version of fawn? It's chocolate with blue, while fawn is chocolate with splash.)

Black/blue/splash appears to work in ducks about the same way it works in chickens (one copy of the gene makes black lighter so it is blue, two copies of the gene makes black even lighter so it is called splash.)

 

[AmeraucanaHank]

First I had to go look up duck genetics...

I found a similar cross in an older thread:
https://www.backyardchickens.com/threads/runner-duck-genetics.436428/page-2#post-21942865
Someone crossed a chocloate with a fawn-and-white, and posted several photos.

And I found a duck genetics calculator.
https://kippenjungle.nl/kruisingEend.html
I clicked the button for "advanced" so I could play with individual genes to check some of what I thought it was telling me.

I assumed the gene labeled "Runner pattern" is what causes the white pattern on the fawn & white.

I find that Fawn has the chocolate dilution and the blue/splash dilution, while the black has neither one. Chocolate is sex-linked, and blue/splash is not.

Do you know which color was the father?

Here is what I think you will get:

If the father is black, and the mother is fawn & white, ducklings should be blue with the white pattern from the fawn & white.

If the father is fawn & white and the mother is black, they will still have the white pattern on all duckings, but the males should be blue and the females "lilac" (that's what the calculator calls the color. I don't know what it looks like-- maybe a darker version of fawn? It's chocolate with blue, while fawn is chocolate with splash.)

Black/blue/splash appears to work in ducks about the same way it works in chickens (one copy of the gene makes black lighter so it is blue, two copies of the gene makes black even lighter so it is called splash.)

thank you sooo much! I can always count on you to figure out my poultry color genes!!!! Thanks! And sorry I don't know what color the male was, but from the pic the person I bought them from it looked like there was 1 black drake & 1 white and fawn drake.

 

[NatJ]

thank you sooo much! I can always count on you to figure out my poultry color genes!!!! Thanks!

You're welcome!
I only know so much, but I've gotten fairly good at looking things up to stretch my limits a bit.

sorry I don't know what color the male was, but from the pic the person I bought them from it looked like there was 1 black drake & 1 white and fawn drake.

So you might get some pure ones of each color, as well as the mixes.

 

[AmeraucanaHank]

So you might get some pure ones of each color, as well as the mixes.

YAY!!!!