Bird, Mammal, and Fish Species along the Niagara River

, The Niagara River supports hundreds of fish, amphibian, reptile, bird, and mammal species, many of which are rare or at-risk. The Niagara River has one of the most diverse freshwater fish populations in Canada, with at least 94 different species identified. This is a result of Niagara being at the northern limit for many warm water fish species and the southern limit for many cold water species. With Niagara Falls acting as a natural barrier to fish migration, the area also acts as an east-west limit for many marine animals. Thanks to the efforts of many agencies and groups to improve water quality and habitat conditions in the Niagara River, beavers, river otters, and mink have made a return to this ecosystem area. Even with the swift currents of the river, these three mammals have begun to thrive in and along the Niagara corridor. , The Importance of Niagara Falls for Birds and Gull Migration , The Niagara Gorge is known worldwide for having the highest number of gull species ever spotted in one location (19 different gull species in total). During the fall and spring migrations, over 100,000 gulls and terns rest and feed here. This can be attributed to the ice-free waters and the ample supply of food. As a result, the Niagara Gorge is designated as an Internationally Important Bird area. These Important Bird Areas are places which are critical to bird populations, including nesting locations, key migration stop-overs, flyways, and overwintering habitats., _____________________,