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BC Conservation Data Centre: Species Summary


Branta canadensis occidentalis
Canada Goose, occidentalis subspecies


 
Scientific Name: Branta canadensis occidentalis (S.F. Baird, 1858)
English Name: Canada Goose, occidentalis subspecies
 
Classification / Taxonomy
Scientific Name - Concept Reference: American Ornithologists' Union (AOU). 1957. The A.O.U. Check-list of North American Birds, 5th ed. Port City Press, Inc., Baltimore, MD. 691 pp.
Classification Level: Subspecies
Species Group: Vertebrate Animal
Species Code: B-CAGO-OC
Kingdom Phylum Class Order Family
Animalia Craniata Aves Anseriformes Anatidae
   
Conservation Status / Legal Designation
Global Status: G5T3 (Apr 2016)
Provincial Status: S2M (Jan 2009)
BC List: Red
Provincial FRPA list:   
Provincial Wildlife Act:
COSEWIC Status:
SARA Schedule:
General Status Canada:
Migratory Bird Convention Act:
   
Ecology & Life History
General Description:
Migration Characteristics:
(Global / Provincial)
 
    Nonmigrant:
    Local Migrant:
    Distant Migrant:
    Within Borders Migrant:
N /
N /
N /
na /
Habitats:
(Type / Subtype / Dependence)
Agriculture / Cultivated Field / Facultative - frequent use
Agriculture / Hedgerow / Facultative - frequent use
Agriculture / Pasture/Old Field / Facultative - frequent use
Grassland/Shrub / Meadow / Facultative - occassional use
Ocean / Eelgrass Beds / Facultative - occassional use
Ocean / Intertidal Marine / Facultative - frequent use
Ocean / Pelagic / Facultative - occassional use
Ocean / Sheltered Waters - Marine / Facultative - frequent use
Ocean / Subtidal Marine / Facultative - frequent use
Other Unique Habitats / Estuary / Facultative - frequent use
Wetland / Marsh / Facultative - frequent use
Global Habitat Comments: Breeds in freshwater marsh with tall shrub vegetative cover. Landscape level: herb graminoid and mixed tree/shrubs landcover classes dominated all 5 breeding-pair density strata (Crouse et al. 1996). Nest site level: Interlevee basins were the most common site used for nesting, followed by levees (Crouse et al. 1996). Low shrub cover or low height forb cover were important components of a nest site in high density nesting strata (Crouse et al. 1996).

Winters in farm fields and agricultural wetlands in Washington and Oregon (Bromley 1976, Cline and Lenhart 1985, Campbell 1990).
Food Habits:
Global Food Habits Comments:
Global Phenology:
Provincial Phenology:
(1st half of month/
2nd half of month)
Colonial Breeder: N
Length(cm)/width(cm)/Weight(g): / /
Elevation (m) (min / max): Global: 
Provincial: 
   
 
Distribution
Endemic: N
Global Range Comment: Breeding occurs on the Copper River Delta near Cordova, Alaska, including Egg Island, Castle Island, and Storey Island. Nonbreeding and molting geese occur in the Bering Glacier area (Eldridge et al. 1997). Wintering occurs primarily in the Willamette Valley of Oregon and along the Columbia River in Washington (Bartonek et al. 1971, Cornely et al. 1988).
 
Distribution UnitOccurrence StatusOrigin Status Migrant Status 
Biogeoclimatic Unit   
CDF - Coastal Douglas-firConfident or certainNative or natural  
CWH - Coastal Western HemlockConfident or certainNative or natural  
    
Ministry of Environment Region   
1- Vancouver IslandConfident or certainNative or naturalT - Transient  
5- CaribooConfident or certainNative or naturalT - Transient  
6- SkeenaConfident or certainNative or naturalT - Transient  
    
Forest District   
Campbell River Forest District (DCR)Confident or certainNative or naturalT - Transient  
Haida Gwaii Forest District (DQC)Confident or certainNative or naturalT - Transient  
North Coast Forest District (DNC)Confident or certainNative or naturalT - Transient  
North Island - Central Coast Forest District (DNI)Confident or certainNative or naturalT - Transient  
South Island Forest District (DSI)Confident or certainNative or naturalT - Transient  
    
Regional District   
Alberni-Clayoquot (ACRD) Confident or certain Native or natural T - Transient  
Capital (CRD) Confident or certain Native or natural T - Transient  
Central Coast (CCRD) Confident or certain Native or natural T - Transient  
Comox Valley (CXRD) Confident or certain Native or natural T - Transient  
Cowichan Valley (CVRD) Confident or certain Native or natural T - Transient  
Metro Vancouver (MVRD) Confident or certain Native or natural T - Transient  
Mount Waddington (RDMW) Confident or certain Native or natural T - Transient  
Nanaimo (RDN) Confident or certain Native or natural T - Transient  
Skeena-Queen Charlotte (SQCRD) Confident or certain Native or natural T - Transient  
Strathcona (SRD) Confident or certain Native or natural T - Transient  
   
Regional District Map
This is not a range map.

This species is known to occur somewhere in the shaded regional district(s). The actual range of the species within each regional district may be much smaller.
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Authors / Contributors
Global Information Author:
Last Updated: Sep 13, 1996
Provincial Information Author:
Last Updated:
   
References and Related Literature
Bromley, R.G., and T.C. Rothe. 2003. Conservation assessment for the dusky Canada goose (Branta canadensis occidentalis Baird). Gen. Tech. Rep. PNW-GTR-591. Portland, OR: U.S. Dep. Agric., For. Serv., Pacific Northwest Research Station. 79pp.
Campbell, R.W., N.K. Dawe, I.McT. Cowan, J.M. Cooper, G. Kaiser, and M.C.E. McNall. 1990. The Birds of British Columbia, Vol. 1. Nonpasserines: Introduction, Loons through Waterfowl. Royal B.C. Mus. in association with Environ. Can., Can. Wildl. Serv. 514pp.
Crouse, J., D. Youkey, and S. Babler. 1996. Dusky Canada goose nest distribution and abundance on the Copper River Delta, Alaska. Forest Service Report, Cordova Ranger District, Chugach National Forest. 23 pp.
Scribner, K.T., J.M. Pearce, B.J. Pierson, S.L. Talbot, and D. Derksen. 1997. Molecular status of the Dusky Canada Goose-genetic assessment of a relocation effort. Paper presentation at the Seventh Alaska Bird Conference, 1-5 December 1997, Anchorage, Alaska.
 

Please visit the website Conservation Status Ranks for definitions of the data fields used in this summary report.

Suggested Citation:

B.C. Conservation Data Centre. 1996. Species Summary: Branta canadensis occidentalis. B.C. Minist. of Environment. Available: http://a100.gov.bc.ca/pub/eswp/ (accessed Jul 15, 2019).