I'm confused. Everywhere I look on the internet, people say chickens are stupid. There have been countless so-called "studies" of chickens that have concluded they are unintelligent creatures. There's been only one research study (that holds any weight) that I can find that says they're not. Other than that...stupid, stupid, and more stupid. Well...I think people who say chickens are stupid need to re-evaluate what constitutes "stupid". Definition for the word stupid: a : slow of mind b : given to unintelligent decisions or acts : acting in an unintelligent or careless manner [Edit to add] Source: Merriam-Webster Dictionary If chickens really are stupid, then that would mean the following: A rooster is unintelligent and slow because it warns the entire flock of impending or imminent danger. A broody hen is careless and unintelligent because she knows precisely when her eggs need to be turned or moved, or when something isn't "quite right" with an egg. A chicken is stupid because it knows to nestle with coopmates for warmth. A chicken is completely unintelligent and careless because they know NOT to voluntarily eat toxic plants and insects. All of those actions require the use of the brain. NONE of those actions are from the "involuntary nervous system (breathing, digestion, heartbeats, blood flowing, etc). Meaning - chickens need to have the brainpower (intelligence) to react in such a manner to given scenarios. Yeh...chickens are stupid...makes perfect sense.