Crows are smart, curious birds that can learn just about anything they see. They are also highly social animals that live in large flocks called murderers. When nighttime comes, they roost in groups of up to a hundred birds at a time. In the city, crows can find many roosting spots, including tall trees and communication towers.
When a crow goes to roost, they are partially awake and partially asleep, which allows them to keep an eye on their surroundings for predators. They do this to make sure they can quickly run away from a potential predator before it has a chance to strike. They sleep upright, as well, which allows them to keep their legs warm.
They are quite gregarious during the day and will chatter with each other as they flutter between trees, but once darkness falls, they will quiet down. They will often roost in large roosts, which provides more protection against predators than if they went to sleep alone. Crows that roost close to city lights tend to sleep longer and quiet down more quickly.
When a crow decides to roost, it will usually choose a spot that is out of the wind and rain. This is why many people believe they sleep in tall trees, as they are protected from the elements by their branches and foliage. Crows also tend to roost in locations that are easy for them to fly to. They can easily navigate between locations as they move to and from their homes during the day, and this will help them select the best place for their roost at night.