I have had chickens for a couple of years, just as a hobby and source of eggs. I know what I like and associate it by the color of the bird only. Other than that, I'm clueless. I raise dogs for breed and conformation and it can get pretty complicated. I imagine chickens can be the same. My question is; what distinguishes one chicken breed from another? What is an Orpington, or a Rhode Island, or a Dominique? What, other than color makes one chicken different than another. Are the differences subtle, or huge? I need some basic bird education here, anyone care to help me out?