Where were all the chickens and their eggs?

Wife and I were discussing old documentaries and movies about native American Indians. Wife brought me my breakfast, that contained scrambled eggs. Then, it hit me. I cannot recall a single western movie where chickens were in the background and cooked eggs were on the table. Surely, native American Indians knew or discovered chicken eggs. Question: can you name a movie or documentary where chickens were in the background, back in the old western days of cowboys and indians?