The small and secretive Sora is rarely seen as it skulks through dense marsh vegetation, with its long toes distributing its weight so that it can walk across mud and floating vegetation without sinking in. It is far more often heard, as its cacophonous whinny and plaintive ker-wee? emanate from somewhere deep in the reeds.
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Sora
The Sora is the most abundant and widely distributed North American species of rail, breeding in wetlands across Canada except in the far north. It winters from the southern United States to northern South America, including the Caribbean. There are approximately 3.4 million individuals in Canada, which represents 78% of the global population and a very high degree of responsibility for Canada. The Canadian population of Sora has shown little change relative to 1970, based on the Breeding Bird Survey. Confidence in this assessment is medium, because although reliability of the survey is high, the more targeted Marsh Monitoring Program in eastern Canada indicates declines. The national population of Sora is within its goal range.
The best source of information on the population status of Sora is the Breeding Bird Survey (BBS). Although rarely seen, Soras vocalize frequently enough to be fairly well detected by the BBS. As the survey also provides good coverage of most of the Canadian range and has high precision, it is considered highly reliable overall. The national BBS trend shows some fluctuation over time, but overall a slight increase of 31%, just within the limits of what is considered little change. BBS trends are regionally variable, showing a moderate decrease in central parts of Ontario and Quebec, little change in south-central British Columbia, the southern Prairies, and southern parts of Ontario and Quebec, a moderate increase in southeastern British Columbia, the Rockies, and the parkland and northwestern boreal, and a large increase in the Maritimes. The Marsh Monitoring Program (MMP) also provides information about Sora population trends, although it has less coverage and a shorter time span. In contrast to the BBS, the MMP shows a moderate decline in southern Ontario and large decline in southern Quebec.
The goal for Sora is to remain at or above its average population level from 1970 to 2022, based on the Breeding Bird Survey. Recent data show that the population is within its goal range.
| Designation | Geographic Area | Status | CITATION |
|---|---|---|---|
| IUCN | Global | Least Concern | |
| Wild Species | Canada | Secure |
The small and secretive Sora is rarely seen as it skulks through dense marsh vegetation, with its long toes distributing its weight so that it can walk across mud and floating vegetation without sinking in. It is far more often heard, as its cacophonous whinny and plaintive ker-wee? emanate from somewhere deep in the reeds.
Sora is primarily reported between April and October in Canada, as it migrates south in the nonbreeding season.