I don't think that the chick is actually laced. There's not enough black in the feathers, and it looks larger in the picture [EDT: than a sebright would]. If you look a partridge rock chicks online, this chick is actually very similar to them. (There are two different colour patterns for partridge rock chicks. Some are almost entirely dark, and some have the "partridge stripes." I'm not sure why this is.)I'm thinking maybe a sebright, I agree with @sylviethecochin The head markings don't look right for a glw?