Hmm, i guess breeds could probably get mixed up in a supply store like that. I might be able to take some better photos in more neutral light tomorrow.
I recently aqcuired three chicks from a person from work (yesterday, actually.) They got them from a farm supply store (which sourced them from 'Hoover's Hatchery'), and didn't buy them as straight-run or all females, they just picked out the individuals they wanted and the worker grabbed them...