Please don't say things like that. I know chickens that care very much about their own lives and the chickens they live with. They do not want to be killed.
I'm not going to argue with you, but please stop talking about something you clearly know nothing about.
For anyone else that reads this thread, chickens are smart animals with complex social lives. See this excerpt from "Are Chickens Smarter Than Toddlers?":
In 1996, I discovered Dr. Lesley Rogers’s book The Development of Brain and Behaviour in the Chicken (1995) in the Beltsville, Maryland Agricultural Library outside Washington, DC. I sat on the floor of the stacks, reading it in tears, because Rogers was affirming that birds are intelligent beings, and that prejudice, not science, says otherwise. She said, “it is now clear that birds have cognitive capacities equivalent to those of mammals” (p. 17). She said, “With increased knowledge of the behaviour and cognitive abilities of the chicken has come the realization that the chicken is not an inferior species to be treated merely as a food source” (p. 213).
She explained that a chick “hatches with a well-developed brain, immediately able to make decisions and to form memories” (p. 118). Of battery cages for hens and all forms of industrial conditions for chickens, she said: “In no way can these living conditions meet the demands of a complex nervous system designed to form a multitude of memories and to make complex decisions” (p. 218). Citing recent demonstrations of complex cognition in birds including chickens and others once denigrated by mainstream scientists as “unquestionably low in the scale of avian evolution,” Rogers called for more research in the field of comparative cognition, given how recent studies had “thrown the fallacies of previous assumptions about the inferiority of avian cognition into sharp relief” (p. 218).
I was ecstatic. A bona fide avian scientist was saying what I already knew to be true about birds, and about chickens in particular, in forthright language that could be quoted without ellipses. She spoke of “the cognitive demands of the hitherto underestimated chicken brain” (p. 213).
The chicken’s brain is equipped to enable it to meet the complex demands of the natural world in which this brain took shape. There is a fit between the total mental system of the chicken and the tropical forest habitat in which chickens evolved. Chickens have thrived for tens of thousands of years within the complex ecology of their forest world – a world that is reflected in their genetic makeup. The neurophysiology of the chicken embodies a system of interactions between the genetic, hormonal and environmental factors that figure in the developing embryo and express themselves in the adult bird.
A cockroach can do those things too. In no way do they even approach the simplest mammals in smarts. The assertion that they are on a par is based on broad generalities - they have memory and respond to their environment. Like your Roomba; I guess that's on a par with mammals?
I lived with chickens for 18 years. I put my experience up against your fake book learning.