Burung kicau (Songbirds)
Dickcissel
Spiza americana
- tidak umum
- 40 km/h
- Risiko rendah
Tiny grassland bird that travels in flocks of millions to South America. Yellow-chested, V-marked, hard to ignore in a hayfield.
- Populasi
- ~28 million (global breeding population); down roughly 14% since 1970, though year-to-year abundance is highly variable
- Habitat
- Grasslands and prairies — overgrown pastures, hayfields, savannahs, weedy meadows, and croplands, mainly in the central Great Plains
- Fakta menarik
- Outside the breeding season Dickcissels gather into enormous flocks — sometimes numbering in the millions on their South American wintering grounds — that roost together at night; the species is also truly polygynous, with successful males sometimes attracting up to six mates.
- Sebaran
- Breeds across the central and eastern United States (core in the Great Plains/Midwest, with erratic year-to-year range shifts, historically expanding east in the early 1800s then contracting after 1850); winters mainly in the Llanos grasslands of Venezuela and Colombia, with smaller numbers through Central America and southern Mexico
- Makanan
- Insects (grasshoppers, caterpillars, beetles, wasps, flies, spiders) during the breeding season; shifts almost entirely to seeds and grains (grasses, sorghum, rice) on migration and in winter
- Ukuran
- 0,15 m
- Bentang sayap
- 0,25 m
- Masa hidup
- 4 tahun
