The Chestnut-collared Longspur is an emblematic inhabitant of the Canadian Prairies, with a strong reliance on the native grasslands it calls home. Males perform elaborate flight displays in these open habitats, flying high and fluttering downward while singing a sweet, burbling song.
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The Chestnut-collared Longspur breeds in native grasslands in the southern parts of the Prairie provinces and migrates to the southwestern United States and northern Mexico. There are approximately 680,000 in Canada, which represent 22% of the global population and a moderate degree of Canadian responsibility. This species is designated Endangered by the Committee on the Status of Endangered Wildlife in Canada because of rapid and accelerating declines in its population (COSEWIC, 2019). Based on the Breeding Bird Survey, the Canadian population has declined by 94% since 1970. Confidence in this assessment is high because the survey provides good coverage and high precision in the trends. The national population of Chestnut-collared Longspur is below its goal range.
The Canadian population of Chestnut-collared Longspur is best monitored by the Breeding Bird Survey, which samples much of the breeding range and has high precision. The national trend shows a slight increase during the 1970s, but a loss of over half the population by the late 1980s. After a few years of stabilization, that decline has continued through to the present, with the most recent population level 95% below where it was in the early 1970s.
The goal for Chestnut-collared Longspur is to increase the population to the level it was at in the early 1970s, based on the Breeding Bird Survey. Chestnut-collared Longspur is far below its goal range and its population decline is ongoing. The trend will need to stabilize before the population can begin to rebound, and it is not realistic for the goal to be met by 2050. Based on analysis of the historical population loss and potential growth rates, the interim target is to reach 25% of the goal by 2050. Achieving this target, and ultimately reaching the national goal for this species, will require ambitious and long-term conservation action.
The goal outlined by the Recovery Strategy for Chestnut-collared Longspur under the Species at Risk Act calls for achieving a stable or increasing trend from 2016 to 2030, and returning to at least the mean abundance from 1980 to 1989 by 2045 (ECCC, 2018), which is roughly equivalent to 75% of early 1970s levels. Although this is a slightly lower long-term goal, the short-term SARA objective is more ambitious, and would require particularly significant effort to achieve.
Designation | Geographic Area | Status | CITATION |
---|---|---|---|
COSEWIC | Canada | Endangered | |
Wild Species | Canada | Vulnerable | |
IUCN | Global | Vulnerable | |
Species At Risk Act | Canada | Endangered | |
Partners in Flight | Western Hemisphere | Red Watch List |
- COSEWIC. 2019. COSEWIC assessment and status report on the Chestnut-collared Longspur Calcarius ornatus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. xi + 46 pp. https://wildlife-species.az.ec.gc.ca/species-risk-registry/virtual_sara/files//cosewic/sr-PlectrophaneVentreNoirChestnutCollaredLongspur-v00-2020Oct-Eng.pdf.
- Environment and Climate Change Canada (ECCC). 2018b. Amended Recovery Strategy for the Chestnut-collared Longspur (Calcarius ornatus) in Canada. Species at Risk Act Recovery Strategy Series. Environment and Climate Change Canada, Ottawa. vii + 31 pp. https://wildlife-species.az.ec.gc.ca/species-risk-registry/virtual_sara/files//plans/rs_chestnut_collared_longspur_e_amended_final.pdf.
The Chestnut-collared Longspur is an emblematic inhabitant of the Canadian Prairies, with a strong reliance on the native grasslands it calls home. Males perform elaborate flight displays in these open habitats, flying high and fluttering downward while singing a sweet, burbling song.
Chestnut-collared Longspur is primarily reported between April and August in Canada, as it migrates south in the nonbreeding season.