Some 40,000 homeless canines live in Bucharest alongside a human population of two million, according to authorities and animal rights groups.
Their numbers started proliferating in the 1980s when then communist dictator Nicolae Ceausescu had some of Bucharest's oldest residential districts razed and replaced with apartment blocs, causing many owners to part with their pets.
Despite a massive euthanasia campaign between 2001 and 2007, stray dogs remained part of daily life in Romania.
Many are fed and even vaccinated by animal rights groups and dog lovers.
Last year, Romania's constitutional court ruled against a bill allowing local authorities to put down stray dogs.