I've had chickens for 2 years and, although I have named them, talk to them, watch them, and am constantly entertained by them, I never considered them to be "pets" per se. They are part of the food production system on my property and garden helpers. They provide eggs, compost, help control bugs and weeds, and, one day, will make soup. I treasure them, and wouldn't want to be without them, but they're easily replaced (I'm currently raising a second flock who will replace my present layers in the fall), so I never thought of them, or wanted to think of them, as "pets". I have to keep that distinction clear in my mind, otherwise they would become a very expensive hobby.
(See my previous post about feelings vs rational thinking. I can't allow my emotions to get in the way of doing what's right, practical, or intelligent. I may have lived most of my life in the south but, by birth and upbringing, I'm a practical Yankee. I only own things that I can actually use. If they can be enhanced in some way so that I can appreciate them asthetically, as well, like my chicken coop, all the better.)