Crows adapt to almost any environment where there are plentiful food sources and tall trees to roost in. They prefer areas of low elevation and abundant water sources such as farms, ponds, and coastlines. Urban environments also provide crows with agreeable habitats, such as city parks, garbage dumps, residential neighborhoods, and parking lots.
During the winter months, crows weather the cold by gathering in large congregations that sometimes total upwards of a thousand birds. Their winter roosts, which take place in tall trees or the rooftops of buildings, act as social gathering places and often occur in the same location year after year. In the spring, smaller family groups of crows return to their nesting territories. Nests are made of twigs and branches, and the interior is lined with soft materials, including feathers, moss, grass, and fur.