Misconceptions about chickens:
1. Chickens are vegetarians. Chickens are not vegetarians, but rather opportunistic omnivores. They enjoy eating bugs, including tics, which is nice for us. I have even witnessed a chicken eating a live baby mouse.
2. Chickens are chicken. Well, sort of, but not really. They do sometimes become afraid over ridiculous things. On the other hand, I witnessed a hawk attack the chickens one day. The Gentle Giant (our rooster) herded all of the lady chickens into the cover of the Jerusalem Artichoke before he himself went to safety- and it was nearly too late. The hawk landed beside him and got him by the tail! The Gentle Giant made a getaway, minus one majestic tail feather. The hawk flew away. So, you see, sometimes they are heroic.
3. Chickens are stupid. While they are not exactly able to read and write, chickens have individual personalities. They look around before going out into the open. They have enough intelligence to forage on their own and develop a pecking order. The roosters have singing competitions. I guess it's debatable if personality is a form of intelligence, but some animals have no individualism. Chickens did not seem especially intelligent to me until I started raising turkeys. Turkeys are truly idiotic.
Of course, none of this explains why those silly chickens always have to cross the road.