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Snapshot
Primary Traits
815.8 g
0 m
48
—
Record section
Identity and Taxonomy
Scientific identity, taxonomic placement, and source lineage.
Scientific name
Polysticta stelleri
English name
Steller's Eider
Order
Anseriformes
Family
Anatidae
Genus
Polysticta
Species
stelleri
Data source
HBW1, BOTW, D07
Record section
Conservation and Range
Threat status and geographic distribution signals.
Conservation status
Vulnerable
Range restricted
No
Island endemic
No
Biogeographic realm
NP
Latitudinal zone
Temperate-Polar
Record section
Measurements
Mass and elevation values from the stored record.
Minimum female mass
625 g
Maximum female mass
1,000 g
Minimum male mass
628 g
Maximum male mass
1,010 g
Minimum unsexed mass
No data
Maximum unsexed mass
No data
Average mass
815.8 g
Minimum elevation
No data
Typical lower elevation
0 m
Typical upper elevation
L
Maximum elevation
No data
Elevation range
No data
Record section
Ecology
Habitat, diet, and specialization profile.
Primary habitat
Sea
Habitat breadth
4
Primary diet
Invertebrate
Diet breadth
1
Diet specialization index
1.4
Record section
Behavior and Reproduction
Breeding, nesting, incubation, and social traits.
Social behavior
Colonial, Social, Pairs and family groups, Singly and pairs
Mating system
Monogamous
Cooperative breeding
Solitary breeder
Nest type
Mound
Nest substrate
Ground
Minimum broods per year
1
Maximum broods per year
2
Minimum clutch size
3
Maximum clutch size
10
Incubating sex
Female
Minimum incubation period
26 d
Maximum incubation period
27 d
Minimum fledging period
49 d
Maximum fledging period
No data
Nest parasitism
Nest Parasite, Victim of Parasitism
Average clutch size
6.5
Average fledging period
49 d
Record section
Mobility and Flight
Flight ability and movement pattern.
Flight status
Flies
Mobility patterns
Migratory