The thesis explores the coexistence of urban pigeons and humans through multispecies ethnography. It examines how practices of care for pigeons – who are categorised as "unwanted" in the city – are formed and carried out in urban environments. Drawing on concepts of urban ecology, ethics of care, and biopolitics, it further reveals the relationship between care practices and institutional regimes of regulation. Analysis of data from participant observation and interviews with pigeon advocates shows that, in response to the vulnerability of these birds in the Czech context, an informal community of caregivers has emerged to fill the role of institutions. The work provides key insights for effective management of urban pigeon populations and contributes to an understanding of various forms of interspecies coexistence.