Black-backed Dwarf-kingfisher vs Common Kingfisher
Ceyx erithaca so với Alcedo atthis
Side-by-Side Comparison
| Thuộc Tính | Black-backed Dwarf-kingfisher | Common Kingfisher |
|---|---|---|
| Tên Khoa Học | Ceyx erithaca | Alcedo atthis |
| Bộ | Coraciiformes | Coraciiformes |
| Họ | Alcedinidae | Alcedinidae |
| Tình Trạng Bảo Tồn | Near Threatened | Least Concern |
| Chiều Dài | — | 17,0 cm (6.7 in) |
| Chiều Dài Sải Cánh | 11,6 cm (4.6 in) | 25,0 cm (9.8 in) |
| Khối Lượng | 17,033333333333335 g (0.60 oz) | 36,0 g (1.27 oz) |
| Chế Độ Ăn | -- | Small fish, aquatic insects, and crustaceans. Hunts from a low perch over water, diving headfirst … |
| Số Trứng | 3-7 | 3-10 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
Black-backed Dwarf-kingfisher only
Common Kingfisher only
Common Kingfisher
Clear, slow-flowing rivers, streams, lakes, and ponds with suitable perching and nesting banks. Requires clean water with good fish populations.
Song & Call Comparison
Black-backed Dwarf-kingfisher
Common Kingfisher
A sharp, penetrating 'chee' whistle given in flight, often the first indication of its presence. Short, shrill single note as it darts low over rivers. Contact call is a rippling …
Geographic Range & Migration
Black-backed Dwarf-kingfisher
Common Kingfisher
Widespread across Europe, Asia, and North Africa. Northern populations migrate south in winter.
Tình Trạng Bảo Tồn
Black-backed Dwarf-kingfisher
Common Kingfisher
How to Tell Them Apart
Black-backed Dwarf-kingfisher
Common Kingfisher
Brilliant electric blue upperparts and orange underparts. Blue-green crown with darker barring. White throat patch and cheek spots. A flash of blue in flight.
Long, straight, dagger-like dark bill — orange base on the lower mandible in females
About These Birds
Black-backed Dwarf-kingfisher
The Black-backed Dwarf-kingfisher is a near-threatened, jewel-like tiny kingfisher of the forest floor in the Thai-Malay Peninsula, Sumatra, and Borneo. It has violet-blue upperparts, a bright orange-rufous head and underparts, and a red bill. It inhabits the dark forest interior near streams, hunting small fish, insects, and amphibians.
Common Kingfisher
The common kingfisher is a dazzling jewel of waterways, its iridescent blue plumage caused by light refraction in the feather structure rather than pigment. These birds inspired the design of the Shinkansen bullet train in Japan — the shape of their bill was copied to reduce sonic booms when trains exit tunnels.