Best indicator for Blue eggs

[Mixed breed rooster]

Hi all! I have a question for olive and easter egger breeders. Which one of this options can be more valid to presume a possible blue eggs ?

 

[nuthatched]

Pea comb is genetically tied to blue eggs. I'd say pea comb and beard/muffs though, a silverudd or cream leg bar will have none of the above features and they lay green/blue.

 

[FunClucks]

Brahmas have pea comb and they lay brown. EEs, Prairie Bluebells, Whiting True Blue, Americauna have pea comb and lay blue. Cream Crested Legbar have straight comb and lay green or blue. It all depends on what the breeds are in your parent flock. I have no Brahma in my flock, and no CCLs, so I know any of my babies with pea comb lay either blue or green, depending on the rooster the hen mated with. Straight comb is recessive, and in my flock indicates some shade of brown

 

[Bananaplinko]

I don’t think any of these factors is a for sure tell tale sign that a bird with lay blue eggs. Polish can have beards and muffs but lay white eggs. Breeds like buckeyes have pea combs but don’t lay blue eggs. Just because one characteristic of a breed carries over to an EE doesn’t necessarily mean that it will lay blue eggs.

 

[FunClucks]

To be certain, you can either do a test mating (mate the rooster to a hen that lays white eggs and see what colors all the females lay - you need a lot of time and a lot of baby females) or send the rooster's DNA off to check for if he has blue egg gene and whether it's homozygous (all offspring will inherit) or heterozygous (some offspring will inherit).

DNA testing with IQ Bird Testing:

https://iqbirdtesting.com/blueegg