The ornithological observations accomplished on bird populations from different biotopes of Chisinau city allow us to present the actual characteristic of bird population distribution and density from the urban territories in breeding period. The biotopic distribution of bird fauna in Chisinau city is conditioned by the phytocenotic structure of green spaces within the city, as well as by the vegetal structure of its surroundings, which provide nest places and shelters for various bird species. In the breeding period 64 bird species were registered on the territory of Chisinau city. The most abundant and various is the bird fauna from the green zone of the city that includes several parks in different areas of the city, which represent the main link in the process of creation, development and conservation of urban bird fauna by comparing with residential districts, where the reproduction conditions are limited.