Why do some jumbo white coturnix have black spots on their head?

[SweetieChicken234]

Some of my hatchlings have black spots and some have none. What is the genetic reason for this?

 

[Kiki]

Watch this:

 

[SweetieChicken234]

Watch this:

Thank you.. off to go learn

 

[SweetieChicken234]

So I'm still brand new to this quail stuff and the colors. I'm trying to make sure I have a firm grasp of this. I'm not 100% there yet. If you have a rooster with no black spots on the head and you breed that rooster to a hen with no black spots on the head does that mean you have a higher chance of pure white birds? Or that the black spot gene doesn't exist in either parent so that effectively removes the black spot from all offspring?

Also.. my chicks with black spots look bigger than my pure yellow(white) chicks. Is this a thing that happens with the solid white ones? Are they smaller? Or is it just individual chick differences and they all average the same once grown? Are the solid white ones weaker and smaller?

These are my first quails and I'm just learning.

 

[Kiki]

So I'm still brand new to this quail stuff and the colors. I'm trying to make sure I have a firm grasp of this. I'm not 100% there yet. If you have a rooster with no black spots on the head and you breed that rooster to a hen with no black spots on the head does that mean you have a higher chance of pure white birds? Or that the black spot gene doesn't exist in either parent so that effectively removes the black spot from all offspring?

Also.. my chicks with black spots look bigger than my pure yellow(white) chicks. Is this a thing that happens with the solid white ones? Are they smaller? Or is it just individual chick differences and they all average the same once grown? Are the solid white ones weaker and smaller?

These are my first quails and I'm just learning.

Your questions do not have a straight answers.

Where the eggs come from maters a lot. Where did your eggs come from?

Usually males are smaller than females no matter the color.

 

[SweetieChicken234]

Your questions do not have a straight answers.

Where the eggs come from maters a lot. Where did your eggs come from?

Usually males are smaller than females no matter the color.

I found a seller on eBay with these white hatching eggs. I said hey let's give this a try because I bet many won't hatch ..and then 20 hatch out of 25. Lol

Anyway so ok males are smaller. Maybe that's why I see some tiny ones and then some are quite a bit bigger. I did have some variation in egg size when they arrived. I don't know how common that is with quails. I wasn't sure if the egg size was going to predetermine the size of the quail as an adult.