from wat I've estimated theres just a 18 day difference betweem these chicks does that seem rightlo

[chickenreyna]

By judging by the appearance of their growth. And yes, almost positive all are bantam cochins..purchased all from same tss store from bantam assortment bin. But, the two bigger ones from tss store on the 26th of November and the smaller ones on December 9th! The bigger ones look massive plus way older to me like atleast one month older?

Take a look:

 

[chickenreyna]

You can only see one larger one here: