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Critically low numbers leave the sparrow highly vulnerable to inbreeding, disease, and environmental changes, further accelerating its decline. 

Rising temperatures, changing rainfall patterns, and extreme weather events disrupt the prairie ecosystem. Droughts and hurricanes threaten the sparrow’s breeding cycle and food supply, compounding its challenges. 

Fragmented landscapes leave sparrow nests vulnerable to predators like raccoons, snakes, and invasive red fire ants that attack eggs. 

Flood Control: Draining wetlands and altering water flow for agriculture and urban flood control disrupted the natural flooding patterns that maintained prairie ecosystems, degrading habitat quality for sparrows.  Fire Suppression: Frequent, low-intensity fires historically kept dry prairies open and healthy. Modern fire suppression has allowed invasive shrubs and trees to overgrow, eliminating suitable nesting and foraging grounds. 

Conversion to Agriculture: Starting in the mid-20th century, vast stretches of prairie grasslands were plowed and transformed into farms, leaving only fragmented pockets of dry prairie.  Urban Development: Florida’s 20th-century population boom fueled urbanization, permanently replacing critical ecosystems with roads, housing developments, and infrastructure.