What breed do you think?

[Findjodi]

Hi,
I hatched “Peanut” from a clutch of brown eggs I thought to be ISA browns and was surprised when she came out black!!
The source did tell me that her chooks were “all sorts” and I don’t mind. She is just over 4 x weeks now and she has white spots! I thought maybe a Wyandotte?? Can you tell from photo? Also, I used the wing tip method to sex her when she was a few days old and I am pretty sure she’s a she, but would love a second opinion. Thanks!!

 

[Findjodi]

PS: she is also twice the size of her “sister” hatched at the same time. Eggs were the same size though.

 

[Cloverr39]

She might be a barred rock or some kind of barred dominant. Maybe a mix of one of those? Although I think those have white spots as chicks and aren't solid black. Maybe wait for the chick to get more feathers. Somewhere at around 2 or 3 months old. Try asking again then if you can't figure it out right now. It could be any breed that has barred feathers. I wish you the best of luck!

 

[3KillerBs]

Probably a mixed breed.

ISA browns are a sexlink cross that don't breed true to begin with.