Numerous birds have migrated to the city independently, in flocks, groups, and swarms. The downtown districts of all major cities are now home to dozens of unique bird species, each exhibiting distinct migratory behavior, drawing many of them towards the city center to find jobs, success, money, and mates. The most prevalent migratory strategy observed is known as "partial migration". In partial migration, populations are composed of both migratory and residential birds. This phenomenon is distinctly observable in urban centers and provides insight into the fundamental aspects of bird life. Partial migration often leads to class and race clashes, each bird fighting for their place in the city.

Though their preferred habitats are open and large, the birds started to confine themselves within smaller spaces to save on rent. Regardless of space, nest building and collecting are crucial routines for city birds. Gavia Familia fulfill this part of the routine in flocks. Besides gathering material for their nests, they also collect items for their feet that may aid in smoother travel, alongside curiosities that seem to be solely for enjoyment or status. Amongst these curiosities are colorful and glowing objects, and items that appear to hold spiritual meaning. To carry their findings, Falco Mater use their pouches or employ communal methods of carrying larger goods. The Aves have also gained impressive new means of travel and transportation such as High-Speed-Rail-travel over the decades. They rarely have to use their wings now.

Foraging is a crucial part of a bird’s daily routine, serving as a vital source of energy. Their dietary habits encompass a variety of food sources, including vegetables, fruits, and even meat is consumed. The specific diet of a bird depends on the bird species. Many of them have reconsidered their omnivore behavior over recent years and transformed their relationships with other species.

Finally, and most importantly, birds exhibit sophisticated social structures characterized by layers of relationships and complex communication. Birds such as Branta Poly prefer staying in herds, whereas Bucephala Unus tend to stay closer to their mates and make their relationship official on government documents. Yet, all of the observed avian creatures tend to enjoy a habit of solitude, retreating from their companions. Research done by experts in the field has found this self-imposed solitary time to help reduce the stress levels among the birds. Gazing at vast landscapes is another mechanism for reducing stress.

The birds will forever remain unique creatures, whose complexity may never be fully understood, as they continue to roam the streets of the city.