One of the problems with purchasing from a feed store is that sometimes the chicks get put into a different bin than the one they belong in, or several breeds are in the same bin. Most feed store employees know very little about chickens and chicks. Try asking one based upon the appearance as a chick what it will look like as an adult--you can get some really "astute" answers that have no bearing on reality (ones with stripes on the back will grow up to be striped, for example). And occasionally a hatchery puts a wrong chick in the box, or the store purchases a group of "hatchery choice."
I'm not knocking purchase from a feed store. It is a very economical means of purchasing a few birds for pets or eggs or even meat (although meat birds are rarely sold here). I am just saying take the breed identification with a grain of salt, and expect that they might end up being something else. Years ago I purchased "araucanas" from one of the local feed stores. One was an EE who laid a light brown egg, the other was actually a light brown leghorn, who laid a white egg.
