Sex-Link using Legbars

[RememberTheWay]

L

I have hatched two rounds of Welsummer (rooster) X Cream Legbar chicks. This should produce sex-links. The chicks I suspect are males have very small head spots compared to other sex-links I have seen. What would cause them to not be as defined? My stock is from breeders and not hatchery quality. The Legbars that are auto-sexing are very obvious at hatch and grow out beautifully. Any input Is appreciated. Attached photos are all the chicks together and suspected males.

looks like the ones with the small head dots also have less defined head triangles. I would think those are definitely going to be your males. The only way to weed out the ones that are hard to notice would be to know what chick is coming from what hen and only hatch from hens that create easily identifiable chicks. Or maybe change the rooster? I'm not sure how that works and whether it's controlled by both hen/roo or if one sex is more dominant when it comes to that.