American Three-toed Woodpecker

Picoides dorsalis (Picoides tridactylus)

General Status Rank: 
Secure
ELCODE: 
ABNYF07080
Common Name: 
American Three-toed Woodpecker
Scientific Name: 
Picoides dorsalis (Picoides tridactylus)
Synonyms: 
Picoides tridactylus
Naming References: 
ASC6
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Taxonomy
Group: 
Bird
Kingdom: 
Animalia
Phylum: 
Chordata
Class: 
Aves
Order: 
Piciformes
Family: 
Picidae
References: 
B004
General Biology

Economic/Human Considerations

Non-game species
References: 
H129
Habitat
open boreal forest with dying trees; coniferous woodlands and muskeg
References: 
B004
H129
LA12
Distribution

Ecozones

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

Distribution

0.72 (B004); Year-round range extent covers entire NWT mainland. Range extent visually estimated from range map (Canadian Wildlife Service – Prairie & Northern Region 2009. Bird distributions in Nunavut & the Northwest Territories: 2009 Review.)
Score: 
G
References: 
B004
Winter Distribution Description: 
slightly south of northern-most breeding range

Number of Occurrences

Observed yearly in Liard Valley, Nahanni region, and Fort Smith
References: 
LA20

Historical Distribution

Likely similar to current dist.
References: 
H129

Area of Occupancy

stable? Need data to confirm for NWT
Score: 
-
References: 
LWR01
LA12
Population

Population Size

PIF population estimate = 50,000, (DD16 Accessed on <January 25, 2015>.)
Score: 
F
References: 
LA01
DD16
Trends

Trends

National trend = decreasing?, need to confirm for NWT; Not enough data on this species to generate trends through either the BBS or Liard Valley Long-term Monitoring Program
References: 
LWR01
LA12
Threats

Threats

Little human disturbance
Score: 
C
References: 
H129

Intrinsic Vulnerability

Limited effects of climate change likely in next 10 yrs, logging, pertroleum dev.
Score: 
-
References: 
H129
General Status Rank
Rank: 
Secure
Status Rank Description: 
Few threats to species in the NWT and forest insect outbreaks and unmanaged unharvested forests are widespread. Breeding habitat not restricted Threats for this species should be low, however not enough data to generate trends.
S Rank: 
S5
Decision Process Description: 
Drafted by Leslie Wakelyn and S. Carriere in 2000 mostly based on printed material; Modified in 2005 by C. Machtans and L.Armer, no change in status.; Reviewed in 2010;no change; Reviewed by Emily Upham-Mills CWS in 2015, no change
Last Updated: 
February 6, 2015

References

Area of Occupancy

  • Downes, C.M., E.H. Dunn and C.M Francis (2000) Canadian Landbird Monitoring Strategy: monitoring needs and priorities into the new millenium.. Partners in Flight - Canada A 9-15 EC-CWS, Yellowknife (L. Wakelyn) - or communicate with Erica H. Dunn, CWS in Hull, QC, at erica.dunn@ec,gc,ca - LWR01 Return
  • Dunn, E. (2005) National Action Needs for Canadian Landbird Conservation, Version 1. Canadian Wildlife Service Landbird Committee, Canadian Wildlife Service, Ottawa, Canada http://www.cws-scf.ec.gc.ca/birds/action/index_e.cfm - LA12 Return

Economic Status

  • Wakelyn, Leslie (2000) Pers. communication. Wildlife biologist, CWS, Yellowknife - H129 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
  • Wakelyn, Leslie (2000) Pers. communication. Wildlife biologist, CWS, Yellowknife - H129 Return
  • Dunn, E. (2005) National Action Needs for Canadian Landbird Conservation, Version 1. Canadian Wildlife Service Landbird Committee, Canadian Wildlife Service, Ottawa, Canada http://www.cws-scf.ec.gc.ca/birds/action/index_e.cfm - LA12 Return

Historical Distribution

  • Wakelyn, Leslie (2000) Pers. communication. Wildlife biologist, CWS, Yellowknife - H129 Return

Intrinsic Vulnerability

  • Wakelyn, Leslie (2000) Pers. communication. Wildlife biologist, CWS, Yellowknife - H129 Return

Naming

  • AOU (2003) Forty-fourth supplement to the American Ornithologists' Union check-list of North American birds.. AUK 120:923-931 - ASC6 Return

NWT Known Subspecies

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

Number of Occurrences

  • Canadian Wildlife Service (2005) NWT/NU Bird Checklist Survey database. Environment Canada / Canadian Wildlife Service Yellowknife http://www.pnr-rpn.ec.gc.ca/nature/migratorybirds/nwtbcs/index.en.html - LA20 Return

Population Size

Rich, T.D., Beardmore, C.J., Berlanga, H., Blancher, P.J., Bradstreet, M.S.W., Butcher, G.S., Demarest, D.W Dunn, E.H., Hunter, W.C., Inigo-Elias, E.E., Kennedy, J.A., Martell, A.M., Panjabi, A.O.,et al. (2004) Partners in Flight North American Landbird Conservation Plan (janv-04). Cornell Lab of Ornithology, Ithica, NY http://www.partnersinflight.org/cont_plan/default.htm - LA01 Return
,
Partners in Flight Science Committee 2013. Population Estimates Database, version 2013. Available at http://rmbo.org/pifpopestimates. Accessed on <January 25, 2015>. (2013) http://rmbo.org/pifpopestimates - DD16 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

  • Downes, C.M., E.H. Dunn and C.M Francis (2000) Canadian Landbird Monitoring Strategy: monitoring needs and priorities into the new millenium.. Partners in Flight - Canada A 9-15 EC-CWS, Yellowknife (L. Wakelyn) - or communicate with Erica H. Dunn, CWS in Hull, QC, at erica.dunn@ec,gc,ca - LWR01 Return
  • Dunn, E. (2005) National Action Needs for Canadian Landbird Conservation, Version 1. Canadian Wildlife Service Landbird Committee, Canadian Wildlife Service, Ottawa, Canada http://www.cws-scf.ec.gc.ca/birds/action/index_e.cfm - LA12 Return

Taxonomy

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

Threats

  • Wakelyn, Leslie (2000) Pers. communication. Wildlife biologist, CWS, Yellowknife - H129 Return