If it has waddles at 3 weeks it is most likely a male, but you never really know, if you post a picture it might be easier for some of us to try and tell. And GLW Golden laced wyandottes right? THey dont have rose combs they have pea combs. Close but not the same look up the difference you might be able to tell. If it has a single comb it might be a mix of some sort. Where did you get them?
Ok, I am a little confused on my 3 GLW chicks. I thought they were all supposed to have rose combs, but one looks like it had a single comb. (It also has waddles, at 3 weeks. Maybe a male) I've never had a male Wyandotte before. Are their combs any different ? They all have the same markings, and are the same size. Could it be a male ? (I hope so)