The house sparrow (Passer domesticus), one of the most widespread bird species across urban and ruralenvironments globally, has seen a notable decline in population in recent years, raising concerns amongecologists. This study explores the factors influencing house sparrow abundance, including mobile towers,electromagnetic field (EMF) exposure, and predation. House sparrows were recorded in 169 of the 205 studysites, thriving in suburban (94.7%), urban (86.3%), and rural (80.4%) areas. While statistical analysis showedno significant relationship between the presence of mobile towers and sparrow abundance, high-level EMFradiation (E > 40V/m, M > 0.4μT) had a significant negative impact on their population, with a p-value of <0.05. Predators, such as Eurasian sparrow hawks, house crows, monkeys, and cats, were also identified assignificant threats. Interestingly, artificial nests showed a positive influence, with an average encounter rateof 15 ± 1.4 nests per block, indicating their potential for conservation. Soil type also played a role, with redloam and black cotton soils found to support more favorable conditions for foraging and nesting.This study underscores the influence of land-use practices, EMF radiation, and predation on housesparrow populations, highlighting artificial nests as a viable conservation measure. Further research isneeded to explore additional factors affecting house sparrow abundance and refine conservation strategiesthrough artificial nest provisioning.
P et al. (Sun,) studied this question.