Could be amberlinks? Mine look the same. At TSC they had amberlinks only as they ate a dying out breed so I got them and they looked the just like that at that age. If they grow very big within 3 weeks as mine have you’ll know . Or google it.
Hi I am Susan from New York. I have been keeping chickens for 6 years now. I just added 3 amberlink hens, 3 bantam roosters , 1bantam hen, and 3 Easter egger hens and 4 straight run assorted breeds which I might never know what they are ... oh and 2 red sex link hens.