Urbanization and the associated increases in infrastructure and human activity can have significant impacts on local wildlife populations. One common urban bird species is the spearheaded sparrow (Passer gressus), which is frequently observed foraging on dumpsites in the Bonaberi area of Douala. To date, no studies have specifically examined the relationship between highway traffic intensity and the foraging ecology of spearheaded sparrows in Cameroon. Understanding these dynamics is crucial for informing urban wildlife management and conservation efforts, as the sparrows play an important role in waste management and ecosystem services within the region. Nevertheless, this study investigated the relationship between highway traffic intensity and the foraging behavior of these sparrows on nearby dumpsites. Observations were conducted over a 5-month period, recording sparrow foraging and other behavioral activity, flock sizes, and traffic volume on the adjacent highway. During this study, highway traffic intensity showed a significant relation on the aggregation behavior of birds r=0.204 P=0.007, the location of birds X2=8.706 df=6 P<0.05, and the behavioral activity of birds X2=6.897 df=6 P<0.05 respectively. Also, highway traffic intensity showed a significant association with birds’ food-subsidy X2=12.384 df=10 P<0.05. More so, highway traffic intensity associated significantly with human activity at dumpsites X2=298.207 df=4 P=0.000. Studies have shown that high levels of highway traffic and associated noise pollution can significantly impact the aggregation behavior of birds in urban and semi-urban environments. The constant noise and disturbance from passing vehicles can disrupt the birds’ ability to communicate, coordinate foraging efforts, and maintain cohesive flocking behavior. The changes in spearheaded sparrow aggregation behavior due to varying highway traffic intensity can have important implications for their foraging efficiency, predator avoidance, and overall survival within the solid waste dump ecosystem. However, the adaptive responses of the spearheaded sparrow to anthropogenic disturbances, such as highway traffic, can inform the development of strategies to support the persistence of this urban-adapted species in the face of ongoing environmental changes. Further research in this area, including the exploration of potential long-term effects on the sparrows’ breeding success, survival, and population dynamics, would provide valuable insights to guide effective conservation and management practices for this and other urban-dwelling bird species in Cameroon.