Executive Producer at Bethesda, let Tom into a secret while they discussed the feature a few weeks ago. Radiant Story was creating crime-conscious chickens.
PC Gamer: “Can you think of anything you’ve seen Radiant Story do that’s surprised you?”
Todd Howard: Let’s see… something that was good lately… but this was a bug – lately we realised that chickens were reporting crimes. I found that very funny. That was just last week: “Why are we getting caught?” “Oh, the CHICKENS are reporting the crimes!”
PC Gamer: (Laughs) If there’s some way that could be made clear to the player, that’d be a great feature.
Todd Howard: That actually took us a while to track down, that bug. Like, “Why is this happening?” (Laughs)
http://www.pcgamer.com/2011/10/05/todd-howard-on-chickens-reporting-crimes-in-skyrim/