As much as we may love seeing pigeons strutting down the sidewalk or grazing on the grass, they spend most of their time resting. They sleep for about 10 hours each day, with two main periods of sleeping. The first one usually occurs in the early morning and lasts for about 4-5 hours, while the second takes place in the afternoon or early evening. They also take short naps throughout the day as needed.
When it comes to where do pigeons sleep, the birds prefer locations that offer them warmth and protection from predators. They will often find shelters on rooftops, skyscraper buildings, crevices in cliffs or undersides of bridges. They are also very versatile birds and will find shelters in urban areas such as window ledges or roofs of houses.
Interestingly, pigeons will often sleep with their head tucked in under their wings. This might seem uncomfortable for them, but it actually helps them to stay alert and on the lookout for potential predators. They are able to do this because they have a unique survival mechanism known as unihemispheric slow-wave sleep, which allows half of their brain to shut down while the other remains awake.
While pigeons do not sleep in their nests, they will often roost together in groups to stay warm and protect each other from predators. They have also learned that roosting on elevated places like trees or man-made structures is more effective than sleeping in their nests since these locations allow them to stay cool during the day and provide good air circulation to prevent heat loss.