Hmmm, you would think the response would be the meat and fresh eggs they supply, but in reality thats not all they give us. I started out raising chickens over 4 years ago in an effort to share time with the grandchildren and teach them how chickens could be a valuable asset as well as to make them more responsible in lifes journey. Turns out that we were the ones that learned and became addicted! Chickens can be very sociable especially if you have or havent got special treats or food for them! A gentle coo can turn into an upset squawk depending on if you come bearing gifts or not. They have mood swings just like us humans and are very dependant of us to care for them in certain ways. They always seem to return the favor in more ways than I can express. I have found they all have individual personalities including the roosters.Getting greeted by a flock full of hungry birds is what I like best about a trip to the coop. The welcome mat is always there and they are glad you came! 
