The Niagara River, which is known for its breath taking waterfalls, is an international waterway that is also important for its annual gathering of birds. Four species congregate here in significant numbers (i.e., more than 1% of world population): Bonaparte’s Gull, Herring Gull, Canvasback and Common Merganser. Additionally more than 1% of the Canadian national population of Ring-billed Gulls is present here as well.
Around the last weekend of April each year, several birders head out at dawn to Oshawa Second Marsh to view Little Gulls entering the marsh. I headed out there on Sunday, which proved fortuitous when, over a period of about two hours, a record tally for this site of 158 Little Gulls was observed and counted by those in attendance.