Animalia > Chordata > Aves > Anseriformes > Anatidae > Chen > Chen canagica

Chen canagica (Emperor Goose)

Synonyms: Anser canagicus; Philacte canagica

Wikipedia Abstract

The emperor goose (Chen canagica) is a species of goose. It breeds around the Bering Sea, mostly in Alaska, United States, but also in Kamchatka, Russia. It is migratory, wintering mainly in the Aleutian Islands. The species is listed as Near Threatened by the IUCN. The American Ornithologists' Union places this species and the North American "white" geese in the genus Chen, rather than the more traditional "gray" goose genus Anser. This species is much less gregarious than most geese, usually occurring in family groups. It breeds on coastal tundra, laying 3–7 eggs in a ground nest.
View Wikipedia Record: Chen canagica

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 3.34417
EDGE Score: 2.16198


Adult Weight [1]  4.736 lbs (2.148 kg)
Birth Weight [3]  82 grams
Female Weight [1]  4.246 lbs (1.926 kg)
Male Weight [1]  5.225 lbs (2.37 kg)
Weight Dimorphism [1]  23.1 %
Breeding Habitat [2]  Arctic coastal
Wintering Geography [2]  Pacific Coast
Wintering Habitat [2]  Coastal marine, Rocky intertidal
Diet [4]  Carnivore (Invertebrates), Frugivore, Herbivore
Diet - Fruit [4]  20 %
Diet - Invertibrates [4]  10 %
Diet - Plants [4]  70 %
Forages - Ground [4]  80 %
Forages - Water Surface [4]  20 %
Female Maturity [3]  1 year
Male Maturity [3]  1 year
Clutch Size [3]  4.9
Clutches / Year [3]  1
Global Population (2017 est.) [2]  57,000
Incubation [3]  24 days
Maximum Longevity [3]  12 years
Migration [5]  Intercontinental
Wing Span [6]  3.903 feet (1.19 m)


Protected Areas

Important Bird Areas

Prey / Diet

Prey / Diet Overlap



Parasitized by 
Hymenolepis nyrocae <Unverified Name>[8]
Hymenolepis philactes <Unverified Name>[8]

Range Map


Europe & Northern Asia (excluding China); North America; Oceania;

External References



Attributes / relations provided by
1Petersen, MR, Schmutz, JA and Rockwell, RF. 1994. Emperor goose (Chen canagica). – In: Poole, A. and Gill, F. (eds), The birds of North America, no. 97. The Academy of Natural Sciences, Philadelphia. The American Ornithologists Union, Washington, DC
2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
5Riede, Klaus (2004) Global Register of Migratory Species - from Global to Regional Scales. Final Report of the R&D-Projekt 808 05 081. 330 pages + CD-ROM
6del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
7Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
8Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Protected Areas provided by Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Specially protected natural territories of the Russian Federation, Ministry of Natural Resources and Environment of the Russian Federation
Abstract provided by DBpedia licensed under a Creative Commons License