They definitely could be. I thought maybe black Australorps when they were 1 week but they looked more like Wyandottes then. They weren’t in a labeled brooder so it’s a toss up!
Need help sexing them. Just noticed their combs are different. One spikey one flat and now I’m nervous one may be a Roo. They were sexed but didn’t confirm breed. I think they are silver laced wyandottes but not sure.