5 new GIRILs, breed guessing?

[JacinLarkwell]

My plan is change rooster, and I buy this 5 to add diversity so next year I hope there will be more girl's

Roosters actually don't determine chick sex. Females are heterozygous for sex chromosomes like male mammals are so the hens determine gender

 

[Josip]

Roosters actually don't determine chick sex. Females are heterozygous for sex chromosomes like male mammals are so the hens determine gender

And I will leave 5 females I hatched and this 5 I buy, and I have 6 older hens... Sou will have 16 hens hope with this 10 newsI Will have better luck