Marsh Wren

Cistothorus palustris

General Status Rank: 
Undetermined
ELCODE: 
ABPBG10020
Common Name: 
Marsh Wren
Scientific Name: 
Cistothorus palustris
Google image search
Taxonomy
Group: 
Bird
Kingdom: 
Animalia
Phylum: 
Chordata
Class: 
Aves
Order: 
Passeriformes
Family: 
Troglodytidae
Habitat
marshes with tall grass/reeds/shrubs
References: 
LA30
LA36
Distribution

Ecozones

Taiga Plains
References: 
LA20

Distribution

Uncommon to rare in SE NWT; northern edge of range; "Small range in the southwest NWT. Range extent visually estimated from range map (Canadian Wildlife Service – Prairie & Northern Region 2009. Bird distributions in Nunavut & the Northwest Territories: 2009 Review.) "
Score: 
E
References: 
LA20
Winter Distribution Description: 
southern USA to central Mexico

Number of Occurrences

2 sightings, Yellowknife and Hay River, none breeding in 2000 (DD1); NWT Checklist database: sightings at Fort Liard 2001-2005 (at least one on nest); one historical record of fledglings at Hay River (1906), also more recent records of birds in Hay River 2000-2003, Need to confirm breeding in Hay river (LA20); Confirmed active near (Muskeg River) Fort Liard in June 2008 (P002); Multiple observations for this species in the Liard Valley (W113 Accessed: Date January 25, 2015).)
References: 
DD1
LA20
P002
W113

Area of Occupancy

Score: 
-
References: 
LA12
Population

Population Size

no population estimate from PIF (DD16 Accessed on <January 25, 2015>.)
References: 
LA01
DD16
Trends

Trends

stable? Need data to confirm for NWT
References: 
LA12
Threats

Intrinsic Vulnerability

Habitat loss
Score: 
-
General Status Rank
Rank: 
Undetermined
Status Rank Description: 
At northern edge of range; confirmed breeding in Nahanni NP 2005 (CM02); no other breeding records; Not enough data to rank this species; no PIF population estimate or trend for NWT. More data necessary to reliably assign rank for species in NWT.
S Rank: 
SU
Decision Process Description: 
Drafted as vagrant by S. Carriere based NWT Checklist database (CWS) in 2000; Modified to undetermined (breeding evidence) by Craig Machtans and L. Armer - based on printed material, observations in the NWT Bird Checklist Survey and some field research. 2005; Reviewed in 2010;no change; Reviewed by Emily Upham-Mills CWS in 2015, no change
Last Updated: 
February 6, 2015

References

Area of Occupancy

  • 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

Ecozones

  • 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

Habitat

  • Sibley, D.A. (2003) The Sibley field guide to birds of Western North America. 1st ed./Audubon,422, Chanticleer Press New York, NY - LA30 Return
  • Kroodsma, D.E., Verner, J. (1997) Marsh Wren in Birds of North America. No.308 The Academy of Natural Sciences and The American Ornithologists' Union Philadelphia and Washington, D.C. - LA36 Return

Number of Occurrences

  • CWS (2000) NWT Bird Checklist Survey -database. CWS Yellowknife Contact NWTchecklist@ec.gc.ca - DD1 Return
  • 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
  • Environment Canada (2009) NWT/Nunavut Bird Checklist Survey Spring 2009 Newsletter. - P002 Return
  • Audubon and Cornell Lab of Ornithology and Bird Studies Canada (2015) http://ebird.org/content/canada/ - W113 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

  • 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

Short Term Trends

  • 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