Pigeons are not arboreal; they do not prefer trees. Their instincts drive them to cliff edges, which in the city translates to ledges, window sills, air conditioning units, bridge supports, and warehouse rafters. They prefer a slight overhang that offers protection from the elements and predators.
Because pigeons can begin a new clutch while the previous squabs are still learning to fly, a single pair can raise up to . pigeon nesting season
For most temperate bird species, nesting is a brief, high-stakes event tied to the abundance of spring insects or summer fruits. The pigeon, however, operates on a different calendar. In theory, pigeons can nest year-round. In practice, their nesting season peaks in the spring and autumn, with a noticeable lull during the extreme cold of winter and the intense heat of mid-summer. This bimodal pattern is a direct result of their primary food source: human refuse and agricultural grain. When temperatures are moderate (between 10°C and 29°C), crop milk production is optimal, and squab survival rates are highest. Pigeons are not arboreal; they do not prefer trees