Wyandottes. Maybe.

[Alaska]

I have two 5 week old chickens from the TSC Silver Laced Wyandotte pullet bin. One has a single comb- does this mean it’s not a Wyandotte? Also, and guesses on sex?

 

[PirateGirl]

I think you have two SLW, hatchery quality. Occasionally single combs pop up in Wyandottes

 

[Gray Farms]

Single combs in hatchery Wyandottes are common. 5 weeks is a little young to sex just yet.

 

[Frazzemrat1]

agreed, hatchery quality silver laced wyandottes.

 

[cstephens1987]

If the parent stock are both heterozygous for rose comb (only one copy each of the R comb gene) then 25% of the offspring won't receive it at all and will have a single comb. 50% of the offspring will be heterozygous as well and only 25% will luck out and be homozygous.

To add to that problem if one parent is homozygous and one is heterozygous, then all offspring will have rose combs but 50% of these will also be only heterozygous for the trait. This is why hatchery quality birds lose traits. It's extremely easy to have presentation of a dominant trait like rose comb but not actually consistently pass it on.

 

[chrissynemetz]

You do have silver laced Wyandottes, but it's still too early to tell their sex. Could you post more pictures in a few weeks?