The Alder Flycatcher is an abundant and widespread breeding species in Canada, ranging from Yukon to Newfoundland and Labrador. It winters in inland areas of western South America. There are approximately 92 million individuals breeding in Canada, which represents 77% of the global population and a very high degree of responsibility for Canada. An additional 23 million individuals breed in Alaska and migrate through Canada, boosting the total proportion of the global population that occurs in Canada to 96%. The Canadian population of Alder Flycatcher has shown little change relative to 1978. The baseline date for this species is more recent than for others because Alder Flycatcher and Willow Flycatcher were previously considered one species (Traill's Flycatcher). Confidence in the status is medium because the Breeding Bird Survey samples less than half of the Canadian range of the species. The national population of Alder Flycatcher is within its goal range.