Ключевые слова: activity, animal, animals, behavior, birds, city, cityscape, color, community, daily, daylight, diversity, domesticated, ecosystem, environment, feeding, flock, flocking, food, foraging, gathering, ground, habitat, habits, interaction, iridescent, life, location, moment, motion, natural, nature, outdoor, pavement, peck, pecking, people, pigeons, scavenging, scene, serenity, sidewalk, social, source, street, sunlight, texture, urban, wildlife,