Common nighthawk (Chordeiles minor) COSEWIC assessment and status report: chapter 1
COSEWIC
Assessment Summary
Assessment Summary – April 2007
Common name:
Common Nighthawk
Scientific name:
Chordeiles Minor
Status:
Threatened
Reason for designation:
In Canada, this species has shown both long and short-term declines in population. A 49% decline was determined for areas surveyed over the last three generations. Reduction of food sources has apparently contributed to the decline of this species, as with several other aerial insectivores. Reductions in habitat availability, caused by fire suppression, intensive agriculture, and declines in the number of gravel rooftops in urban areas, may also be factors in some regions.
Occurrence:
Yukon, Northwest Territories, British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Prince Edward Island, Nova Scotia, Newfoundland and Labrador
Status history:
Designated Threatened in April 2007. Assessment based on a new status report.
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