Burung kicau (Songbirds)
Snow Bunting
Plectrophenax nivalis
- tidak umum
- 40 km/h
- Risiko rendah
Black-and-white flocks roll across winter fields like blowing paper. The northernmost-breeding songbird on Earth.
- Populasi
- Approximately 29 million individuals globally, including roughly 14 million mature individuals in the USA and Canada; global trend considered slowly decreasing
- Habitat
- Breeds on high-Arctic tundra, nesting in rocky crevices, scree, and cliff cavities; winters in open lowland habitats such as farmland, weedy stubble fields, coastal dunes, and lakeshores
- Fakta menarik
- Unlike most songbirds, the Snow Bunting's breeding plumage change from rusty-brown to crisp white is achieved not by molting new feathers but by the brown feather tips wearing away over the winter to reveal the white feather bases beneath.
- Sebaran
- Circumpolar Arctic breeder (northern Canada, Greenland, Iceland, Scandinavia, Svalbard, northern Russia/Siberia, Alaska); winters south into southern Canada, the northern contiguous United States, and northern/central Europe and Asia
- Makanan
- Mainly seeds of grasses and weeds (e.g., knotweed, ragweed, amaranth) in fall and winter; shifts to invertebrates (flies, butterflies, spiders) and berries (crowberry, bilberry) in summer, with nestlings fed almost exclusively on invertebrates
- Ukuran
- 0,15 m
- Bentang sayap
- 0,35 m
- Masa hidup
- 3 tahun
