There are two subspecies of Willet in Canada. Most Willets breed in Prairie wetlands (T. s. semipalmata), while a less abundant Eastern subspecies (T. s. inornata) breeds in the coastal marshes of Atlantic Canada. Western birds winter primarily along the Pacific or Atlantic coasts of the United States or occasionally farther south, while Eastern birds are thought to mainly winter in northern South America. There are approximately 91,000 Willets in Canada (roughly 90% of them in the Prairies), which represents 37% of the global population and a moderate degree of responsibility for Canada. The Canadian population of Willet has shown little change relative to 1970, although the cumulative decline of nearly 25% over that period is on the verge of qualifying as a moderate decline. Confidence in this assessment is moderate because the Breeding Bird Survey provides good coverage and has high precision in its trends, but the observed change suggests a possibility of a moderate decrease. However, based on best available evidence, the national population of Willet is currently within its goal range.