Burung kicau (Songbirds)
Dark-eyed Junco
Junco hyemalis
- umum
- 24 km/h
- Pemula
- Risiko rendah
The little snowbird. Hops through winter delivering messages one bounce at a time.
- Populasi
- ~220 million mature individuals; decreasing trend (~1.3%/yr avg 1970-2017; ~15% decline over past decade)
- Habitat
- Coniferous and mixed coniferous-deciduous forests with understory for breeding; open woodlands, forest edges, brushy/partially wooded areas, parks, towns, and backyard feeders in winter
- Fakta menarik
- Dark-eyed Juncos are famously variable across their range — once split into multiple species (Oregon, Slate-colored, Pink-sided, White-winged, Gray-headed juncos, etc.) based on distinct plumage forms, they were lumped into a single species, Junco hyemalis, once genetic and behavioral studies showed the forms interbreed freely where their ranges meet.
- Sebaran
- Breeds across most of North America from Alaska and Canada south through the western mountains (locally into Mexico) and northeastern/Appalachian US; winters throughout the contiguous United States and northern Mexico, giving it the nickname "snowbird" in the eastern US. Extremely large range (breeding EOO ~20.5M km², non-breeding EOO ~17.9M km²).
- Makanan
- Primarily seeds (grasses, weeds) year-round, comprising roughly three-quarters of annual diet; supplements with insects and other arthropods especially during breeding season, with insects making up nearly half of diet then and being critical for nestlings
- Ukuran
- 0,155 m
- Bentang sayap
- 0,23 m
- Masa hidup
- 3 tahun
