Lesser Yellowlegs

Tringa flavipes

General Status Rank: 
Sensitive
ELCODE: 
ABNNF01030
Common Name: 
Lesser Yellowlegs
Scientific Name: 
Tringa flavipes
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Taxonomy
Group: 
Bird
Kingdom: 
Animalia
Phylum: 
Chordata
Class: 
Aves
Order: 
Charadriiformes
Family: 
Scolopacidae
References: 
B004
General Biology

Economic/Human Considerations

nonhunted species
References: 
H125
Habitat
open woodland with nearby water
References: 
B004
H125
Distribution

Ecozones

Southern Arctic, Taiga Cordillera, Taiga Plains, Taiga Shield, Boreal Cordillera, Boreal Plains
References: 
B004

Distribution

0.83; Range widespread across NWT; covers entire mainland. Range extent visually estimated from range map in "Distribution of birds in NWT & Nunavut: 2009 Review" (CWS).
Score: 
G
References: 
B004
Winter Distribution Description: 
southern US to South America

Number of Occurrences

prob. More than 100
Score: 
DE
References: 
H125

Area of Occupancy

likely stable
Score: 
-
References: 
VJ4
VJ13
H306
R2020002
Population

Population Size

North American population = 660,000 and approx 40% in NWT: 200,000 to 250,000 (2005) (need to recalculate with more recent population numbers - due to declines
Score: 
F
References: 
H125
VJ13
A380
Trends

Trends

declining in southeastern part of breeding range; Large decrease (medium reliability) calculated from migration monitoring and BBS (poor coverage and poor precision) (Status of Birds in Canada 2014 update, unpublished data provided by H306); new data of the NWT: declining annual rate of -2.39% (1970-2018) for a cumulative change of -25.2% in same period, giving a probability of decline of more than 30% of 0.43. (COSEWIC R2020002)
Score: 
AF
References: 
VJ4
VJ13
H306
R2020002
Threats

Threats

Hunting on wintering grounds for sport and subsistence (Status of Birds in Canada 2011 website, http://ec.gc.ca/soc-sbc/oiseau-bird-eng.aspx?sY=2011&sL=e&sM=c&sB=LEYE)
Score: 
BC
References: 
H125

Intrinsic Vulnerability

effects from climate change not likely to be large in next 10 years
Score: 
-
References: 
H125
General Status Rank
Rank: 
Sensitive
Status Rank Description: 
key species in NWT boreal forest; declines extend to NWT; Long and short term declines evident in many data sources: migration counts, ground and aerial surveys on wintering grounds, BBS;
S Rank: 
S2S4
Decision Process Description: 
Drafted by Vicky Johnston and S. Carriere mostly based on printed material in 2000; reviewed in 2005 by ENR.; Reviewed in 2010;no change; Reviewed by Danica Hogan CWS in 2015, no change; Reviewed in 2020, no change
Last Updated: 
November 3, 2020

References

Area of Occupancy

  • CWS Shorebird Technical Committee (1999) unpublished appendices to CSCP. CWS CWS- Johnston's files - VJ4 Return
  • Morrison, RIG, BJ McCaffery, S. Skagen, B. Andres, G. Page, S. Jones, and RE Gill. (2005) Population estimates of North American shorebirds,2005. Draft MS. (CWS?) - VJ13 Return
  • Rausch, Jennie (2015) shorebird biologist, CWS Yellowknife - H306 Return
  • COSEWIC (2020) COSEWIC Status Report on the Lesser Yellowlegs Tringa flavipes in Canada. COSEWIC https://www.canada.ca/en/environment-climate-change/services/species-risk-public-registry/cosewic-assessments-status-reports/harris-sparrow-2017.html - R2020002 Return

Economic Status

  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return

Ecozones

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return

Habitat

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return
  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return

Intrinsic Vulnerability

  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return

Number of Occurrences

  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return

Population Size

Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return
,
Morrison, RIG, BJ McCaffery, S. Skagen, B. Andres, G. Page, S. Jones, and RE Gill. (2005) Population estimates of North American shorebirds,2005. Draft MS. (CWS?) - VJ13 Return
,
Andres BA, Smith PA, Morrison RIG, Gratto-Trevor CL, Brown SC, and Friis, CA. (2012) Wader Study Group Bull. 119(3): 178-194.) - A380 Return

Range Extent

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return

Short Term Trends

  • CWS Shorebird Technical Committee (1999) unpublished appendices to CSCP. CWS CWS- Johnston's files - VJ4 Return
  • Morrison, RIG, BJ McCaffery, S. Skagen, B. Andres, G. Page, S. Jones, and RE Gill. (2005) Population estimates of North American shorebirds,2005. Draft MS. (CWS?) - VJ13 Return
  • Rausch, Jennie (2015) shorebird biologist, CWS Yellowknife - H306 Return
  • COSEWIC (2020) COSEWIC Status Report on the Lesser Yellowlegs Tringa flavipes in Canada. COSEWIC https://www.canada.ca/en/environment-climate-change/services/species-risk-public-registry/cosewic-assessments-status-reports/harris-sparrow-2017.html - R2020002 Return

Taxonomy

  • Godfrey WE (1986) The Birds of Canada. National Museums of Canada Revised Edition RWED Library Call #QL685.G6 - B004 Return

Threats

  • Johnston, Vicky (2000) Personal Communication . Biologist, Canadian Wildlife Service - H125 Return