Blue Mottled Cochins/Possible? Genetics Gurus-Help!

[SGM]

I'm working with the same program.

You will need to breed to blue or splash birds to get blue in your mottleds. I would start with splash as all chicks will be blue.

Cross all your blue chicks to mottleds again. Then you'll get blue mottled and black mottled chicks.

 

[SGM]

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I have some of her chicks right now and they're great. I can't wait to see them feather.

I would always keep blue or splash chicks and always cross back to a nicely mottled bird. This will strengthen your mottling gene as well as continue to introduce your blue coloring.