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Bucephala clangula13 gözlem5 gözlemci · 7 ilGözlem haritasına git ↓Genel bilgi
Bucephala clangula, Bucephala cinsine bağlı bir hayvan türüdür.
Habitatı
Their breeding habitat is the taiga. They are found in the lakes and rivers of boreal forests across Canada and the northern United States, Scotland, Scandinavia, the Baltic States, and northern Russia. They are migratory and most winter in protected coastal waters or open inland waters at more temperate latitudes. though they will readily use nest boxes as well.
Yayılışı
Their breeding habitat is the taiga. They are found in the lakes and rivers of boreal forests across Canada and the northern United States, Scotland, Scandinavia, the Baltic States, and northern Russia. They are migratory and most winter in protected coastal waters or open inland waters at more temperate latitudes. though they will readily use nest boxes as well.
Beslenme
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Biyoloji
Natural tree cavities chosen for nest sites include those made by broken limbs and those made by large woodpeckers, specifically pileated woodpeckers or black woodpeckers. Average egg size is a breadth of , a length of and a weight of . and occurs less frequently with other duck species. The broods commonly start to mix with other females' broods as they become more independent or are abandoned by their mothers. Goldeneye young have been known to be competitively killed by other goldeneye mothers, common loons and red-necked grebes. Insects are the predominant prey while nesting and crustaceans are the predominant prey during migration and winter. Locally, fish eggs and aquatic plants can b…
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Popülasyon
The common goldeneye is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies. Around 188,300 common goldeneyes were killed annually by duck hunters in North America during the 1970s, representing slightly less than 4% of the total waterfowl killed in Canada during that period, and less than 1% of the total waterfowl killed in the US. Both the breeding and winter habitats of these birds have been degraded by clearance and pollution. However, the common goldeneye in North America is known to derive short-term benefits from lake acidification. ]]
Davranış
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Ötüş
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Kaynaklar
- Bucephala clangula — WikipediaWikimedia Foundation
