Just had this thought today---two of my young chickens and two of my old ones are RIR and they look exactly alike. So how do the other old hens know to chase the young ones out of the coop and leave their (same age) sisters/friends alone? Do they make some noise or can they smell each other? Is it high frequency that we can't hear?
This fascinated me in "March of the Penguins" where each bird knew his/her mate and chick in the middle of 100,000 others who looked the same and sounded the same (to me).
Maybe I need to get out more........
This fascinated me in "March of the Penguins" where each bird knew his/her mate and chick in the middle of 100,000 others who looked the same and sounded the same (to me).
Maybe I need to get out more........

