Image to followAI-generated illustrationPolysticta stelleri
Polysticta stelleri
Family: AnatidaeGenus: Polystictanative in Germany
native in Germany
native_regions-Cache · 85 %
🌿
2
Plants
visited
🔗
2
Interactions
documented
About this species
Polysticta stelleri, the Steller's Eider, is a sea duck recorded occasionally in Great Britain. Adults weigh around 840 g and have a wingspan of approximately 20 cm. They feed mainly on aquatic invertebrates, with some fish taken. Breeding occurs in a single annual clutch, with seven eggs incubated for 26 days and chicks fledging after 50 days.
Ecological network
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Prey / FoodPlant food
Yearly cycle
A single clutch of 7 eggs is incubated for 26 days, and young fledge about 50 days after hatching. Only one brood is produced per year.
Merkmale
Körper
Wingspan
20.36 cm
Weight
842 g
Max. Lebensalter
23 Jahre
Fortpflanzung
Wurfgröße / Gelege
7, 1× pro Jahr
Bebrütungsdauer
26 Tage
Ausflugalter
50 Tage
Geschlechtsreife
~2.2 Jahre
Ernährung & Verhalten
80% Wirbellose20% vertebrates_fish
Scientific profile
Adult Steller's Eiders typically weigh about 842 g and have a wingspan of approximately 20 cm. They can live up to 23 years. The diet consists largely of invertebrates (80%) and includes a smaller proportion of fish (20%). Each year a single clutch of 7 eggs is laid, incubated for 26 days, and the young fledge after around 50 days.
Visited plants
2 plants are visited by this species
Empetrum nigrumZostera marina
Sources & data origin
•Interaktionsdaten via GloBI (CC-BY 4.0)
•Neff et al. (2025) — Swiss Moth Traits, DOI: 10.5281/zenodo.14506883 (CC BY)
•GBIF Backbone Taxonomy — GBIF Secretariat (2024), DOI: 10.15468/39omei (CC BY 4.0)
All data is licensed under CC BY 4.0, CC0, or compatible terms. Attribution according to license conditions. Full source overview →