House sparrows (Passer domesticus) have adapted to urban environments, which are changing and growing faster than ever before. A range of both biotic and abiotic factors—including habitat fragmentation, changing food availability, heavy metals, nighttime light, noise and urban density—change the way birds live in an urban environment. Understanding how cities affect birds can help scientists understand and predict how bird populations may change in the future and help birds and humans coexist.
Click here for original story, Urban density strongly correlates with house sparrow health
Source: Phys.org