Sexing chicks

[Splashycochin]

I have a dozen blue Marans eggs almost ready in the incubator, and wonder if anyone has info on sexing the chicks. I have read that some Marans can be color sexed, but these are Blue Marans, not cukoo or copper.

Any thoughts?

 

[LarryPQ]

THe only real way to sex a chick is vent sexing--and the hatcheries really only claim a 90% rate on those. I don't know much about the blue marans, but maybe once they pop you can post some pics and we'll give it a guess?