2/14 Why Do Pigeons Have a Bad Reputation? 1. have a disdain for pigeons In fact, many people have a disdain for pigeons, calling them "rats with wings." 2. carry diseases that are harmful to humans One reason for pigeons' bad reputation is that they carry diseases that are harmful to humans. 3. pose a risk to humans Not only do pigeon droppings pose a risk to hamans, but they can also damage bu..