House Sparrow (Passer domesticus) is a well-known synanthropic species of birds that has traditionally been abundant around human habitation. Nevertheless, the fast urbanization has brought about drastic changes in its habitat or rather with its nesting patterns, and choice of nest sites. The paper aims at analyzing the adaptive nesting behaviors of the House Sparrows in fast urbanizing environment of Bhilwara, Rajasthan. With the conversion of the traditional housing forms to the modern building designs, areas that allow natural nesting like the cavity, ventilators and the tiled roofing are reducing significantly thus forcing the sparrows to change their modes of nesting. The rationale of the study is to examine how the House Sparrows change their nesting behaviors regarding the changes in the urban environment, which types of locations are used frequently as nesting, and how the anthropogenic and ecological factors contribute to House Sparrow adaptations. Examining literature available shows that sparrows are flexible in behaviour as they make use of human built structures like electric meter boxes, air-conditioning and signboards among other man-made structures in urban environments. These shifts demonstrate the tenacity of the species, along with the increasing dependence of the species on modified environments. As a way of responding to the research questions posed, a research design that is both descriptive and analytical has been adopted. The research is based on both primary observation data as well as secondary data sources, which include scientific publications, environmental literature, and bird databases. Primary data will be collected by writing down the nesting sites, the structures used and the habitat conditions around the areas of choice in the urban areas of Bhilwara. To determine patterns and trends in the ability to adapt to nesting, the obtained information is processed through comparative and descriptive analysis. The paper gives an insight into the effects of urbanization on avian behavioral ecology and the importance of conservation based urban planning to sustain adequate sparrow populations.