Pigeons are very common birds, as they appear in and around almost every urban area throughout the world. Their feathers are often grey, white or dark, but they can present spots and other shades.
Pigeons are usually easy to spot during the day and night, and their droppings are also easy to see due to their distinctive dark to pale coloration.
Pigeons are not a direct threat to humans. However, their droppings are unsanitary and highly corrosive. They are a known cause for extensive long-term damage to buildings and properties.