Urban biodiversity is crucial for ecological security, balance, and fostering residents' awareness of human-nature interconnectedness. Birds, as urban ecosystem indicators, reflect ecosystem services and are impacted by urban development. This study examined the distribution characteristics and environmental influences on representative bird species from typical ecological groups in Beijing, analyzing critical habitat locations and forecasting potential ecological corridors in light of urban planning. Distribution of six representative ecological groups of birds (song birds, terrestrial birds, climbing birds, aquatic birds, wading birds, raptor birds) in 2019 were constructed using kernel density analysis. The predicted potential distribution and contribution of environmental impact factors for six bird species (Falco tinnunculus, Ardea alba, Aix galericulata, Dendrocopos canicapillus, Streptopelia chinensis, Turdus mandarinus) were obtained using MaxEnt model. The potential ecological corridors were constructed by least-cost distance model. The results showed that: (1) Distribution density of bird groups was higher near water bodies and parks due to existing urban planning; (2) Blue-green corridors, including greenways and waterways, enhanced urban bird diversity; (3) Potential ecological corridors for six representative bird species primarily featured forested areas, with varied habitat type proportions tailored to each species' needs. Recommendations propose enhancing green-space connectivity and multi-habitat restoration for key species. This study underscores the need for refined urban planning strategies emphasizing diverse habitats and migration pathways, aiming to create sustainable living areas and ecological corridors. It also encourages utilizing platforms for birdwatching and public biological observation data to optimize urban biodiversity.