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Aythya collaris

Family: AnatidaeGenus: Aythyanative in Germany

native in Germany

native_regions-Cache · 85 %

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Plants

visited

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Interactions

documented

About this species

Aythya collaris is a waterbird in the family Anatidae, recorded in Great Britain. Adults weigh about 730 g and have a wingspan of 19.5 cm. Its diet includes plant material and invertebrates.

Ecological network

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Prey / FoodPlant food

Merkmale

Körper

Wingspan

19.48 cm

Weight

730 g

Max. Lebensalter

20.416667 Jahre

Fortpflanzung

Wurfgröße / Gelege

9, 1× pro Jahr

Bebrütungsdauer

26.75 Tage

Ausflugalter

52.25 Tage

Geschlechtsreife

~1 Jahre

Ernährung & Verhalten

60% Pflanzen20% Samen20% Wirbellose

Scientific profile

Aythya collaris is a diving duck of the family Anatidae. Adult body mass averages 730 g and the wingspan reaches 19.5 cm. The species is present in Great Britain, with records held in the United Kingdom Species Inventory, though its status remains indeterminate. Dietary information from one dataset indicates the food consists of roughly 20% seeds, 60% other plant matter and 20% invertebrates. Breeding data show a typical brood size of 9 eggs, with a single brood raised per year. Incubation lasts about 27 days and the young fledge after approximately 52 days. The maximum recorded lifespan exceeds 20 years.

Visited plants

6 plants are visited by this species

Cyperus esculentusStuckenia pectinataSagittaria latifoliaRuppia maritimaPanicum dichotomiflorumZea mays

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)