The Black-necked Stilt is most abundant in natural and man-made wetlands from the southern United States to southern South America, but in recent decades its range has expanded north into the Canadian Prairies. While many populations of this species are resident, those breeding in Canada and the United States migrate to Mexico and Central America for the winter. There are approximately 9,700 individuals in Canada, which represents just over 1% of the global population and a low degree of responsibility for Canada. The Canadian population of Black-necked Stilt has shown a large increase relative to 1970. Confidence in this assessment is very high because although precision in the Breeding Bird Survey trend estimate is low, coverage is good and the magnitude of the increase is large enough to have certainty in the status. The national population of Black-necked Stilt is within its goal range.