breeds from McMurry's?

[humphrey farms]

I am a first time chicken owner and loving it.! However, I don't know what I have for breeds. I spent my whole afternoon taking pictures for some expertise help. Thanks anyone.

 

[hdowden]

welsummers or partridge rocks or maybe leghorns

 

[humphrey farms]

They are growing fast. Much more mature than the others chicks that came in the bargain Special from McMurry's. They feathered up real quick and already have started to try to crow! LOL