Image to followAI-generated illustrationAythya affinis
Aythya affinis
Family: AnatidaeGenus: Aythyanative in Germany
native in Germany
native_regions-Cache · 85 %
🌿
6
Plants
visited
🔗
6
Interactions
documented
About this species
Aythya affinis is a waterfowl species recorded in Great Britain. Adults have an average mass of 789 grams and a wingspan of around 20 centimetres. Its diet is mainly plant-based, supplemented with invertebrates. Clutch size is typically 10 eggs, incubated for about 24 days, with young fledging after roughly 48 days. The maximum reported lifespan is nearly 19 years.
Ecological network
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Prey / FoodPlant food
Yearly cycle
This species produces one clutch per year. The typical clutch size is 10 eggs. Incubation takes 24.4 days, and young birds fledge 48 days after hatching.
Merkmale
Körper
Wingspan
19.82 cm
Weight
788.5 g
Max. Lebensalter
18.8 Jahre
Fortpflanzung
Wurfgröße / Gelege
10, 1× pro Jahr
Bebrütungsdauer
24.4 Tage
Ausflugalter
48 Tage
Geschlechtsreife
~1.2 Jahre
Ernährung & Verhalten
50% Pflanzen30% Samen20% Wirbellose
Scientific profile
Aythya affinis is a bird in the family Anatidae and genus Aythya. An adult’s typical body mass is 788.5 grams and wingspan is 19.8 centimetres. The maximum recorded lifespan is 18.8 years. Its diet consists of approximately 50 per cent other plant material, 30 per cent seeds and 20 per cent invertebrates. Clutch size is 10 eggs, with a single brood per year. Incubation lasts 24.4 days, and the young fledge at 48 days of age.
Visited plants
6 plants are visited by this species
Myriophyllum spicatumDysphania botrysStuckenia pectinataPersicaria lapathifolia subsp. pallidaTriglochin maritimaZostera 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 →