Mexico City’s bustling bus system has long been subject to many informal rules and customs. One curious local lore involves the alleged prohibition or strong discouragement of transporting live chickens on public buses. Historically, vendors and individuals carrying poultry would be asked to leave their animals behind or use alternative transport. The reasoning was partly practical — live chickens could cause noise, mess, and disturbances in crowded, enclosed vehicles — but there is also speculation that it was tied to health and hygiene concerns in the rapidly growing urban environment. While this rule was never formally codified in official municipal transport regulations, many older residents and drivers recall this practice being enforced through social pressure or the drivers’ discretion. Some attribute the custom to reduce animal-related complaints during peak travel times. Although modern Mexico City transport authorities don’t mention such restrictions explicitly today, the tale persists as an example of how urban etiquette and informal norms shape public behavior. This story highlights how local cultural customs often intersect with transport habits in large cities.
Source / verification note
Based on local anecdotes and informal reports; no formal legal documentation found.