Urbanization has significantly reduced traditional sparrow nesting spaces by replacing open land with concrete structures. Loss of green areas, increased pollution, and modern building designs limit safe nesting options. As a result, sparrows of Pennsylvania increasingly struggle to adapt, relying on shrinking urban gardens and modified habitats for survival.
Would you like to comment?
Join Diigo for a free account, or sign in if you are already a member.
Would you like to comment?
Join Diigo for a free account, or sign in if you are already a member.