Not always, there are other factors involved.
Here's a good link which explains sex linked (note: this is not the same as auto sexing)
https://www.backyardchickens.com/t/261208/sex-linked-information
Here's a good link which explains sex linked (note: this is not the same as auto sexing)
https://www.backyardchickens.com/t/261208/sex-linked-information