Yes, they are like the bottom one.Many times with silver laced wyandottes the chicks will vary in depth of dark and light naturally. It won't give any hint to color quality nor sex. Do you have a clearer photo of the darker ones? I'm pretty sure they are silver laced wyandottes but there could be a chance they are golden laced. Here is an example of 2 silver laced wyandotte chicks. Light versus dark. Does the dark one look like yours?
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