Niagara Falls is home to a massive bird population because the Niagara River Corridor serves as a globally significant "Important Bird Area" (IBA). The river remains largely unfrozen during the winter months due to the constant, powerful movement of the water, providing a vital food source and habitat for waterbirds when other freshwater bodies are iced over. The corridor is a major stop on the Atlantic Flyway, hosting over 90 species of overwintering birds, including one of the world's most diverse concentrations of gulls. In late autumn, you can observe up to 19 different species of gulls and tens of thousands of waterfowl, such as Bonaparte's Gulls and Common Mergansers, foraging in the nutrient-rich waters. The mist from the falls also creates a unique microclimate that supports diverse vegetation, further attracting a wide variety of migratory songbirds and raptors.