Common Kestrel vs Diều ăn rắn
Falco tinnunculus so với Sagittarius serpentarius
Side-by-Side Comparison
| Thuộc Tính | Common Kestrel | Diều ăn rắn |
|---|---|---|
| Tên Khoa Học | Falco tinnunculus | Sagittarius serpentarius |
| Bộ | Falconiformes | Accipitriformes |
| Họ | Falconidae | Sagittariidae |
| Tình Trạng Bảo Tồn | Least Concern | Endangered |
| Chiều Dài | 34,0 cm (13.4 in) | 130,0 cm (51.2 in) |
| Chiều Dài Sải Cánh | 74,0 cm (29.1 in) | 210,0 cm (82.7 in) |
| Khối Lượng | 190,0 g (6.70 oz) | 3700,0 g (130.51 oz) |
| Chế Độ Ăn | Primarily voles and mice, also lizards, large insects, and small birds. Hunts by hovering at … | Snakes, lizards, small mammals, and large insects. Hunts on foot, stomping prey to death with … |
| Số Trứng | 1-7 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
Không
Common Kestrel only
Diều ăn rắn only
Common Kestrel
Open country including farmland, grasslands, moorland, and urban areas. Common along motorways and in cities across Europe.
Diều ăn rắn
Open grasslands, savannas, and light woodland across sub-Saharan Africa. Avoids dense forests and very arid regions.
Song & Call Comparison
Common Kestrel
A shrill, repeated 'kee-kee-kee-kee' or 'kik-ik-ik', especially near nest. Alarm call is a nasal chattering. Generally less vocal than larger falcons. Calls ring clearly in open country.
Diều ăn rắn
A surprisingly deep, resonant croaking 'kowrr-kowrr' often heard at dawn on African savannas. Also gives pig-like grunting sounds. Mostly silent compared to true songbirds.
Geographic Range & Migration
Common Kestrel
Europe, Asia, and Africa. One of the most common and widespread raptors in the Old World.
Diều ăn rắn
Sub-Saharan Africa from Senegal and Somalia south to South Africa. Resident throughout its range.
Tình Trạng Bảo Tồn
Common Kestrel
Diều ăn rắn
How to Tell Them Apart
Common Kestrel
Males have a blue-grey head and tail with a rufous back spotted with black. Females are rufous-brown with heavy barring. Both have a dark moustachial stripe.
Short, hooked grey bill with a yellow cere
Diều ăn rắn
Grey body plumage with black flight feathers and thigh feathers. Distinctive long black crest feathers trail from the back of the head. Orange-red bare facial skin.
Short, strong, hooked greyish bill with a yellowish cere
About These Birds
Common Kestrel
The common kestrel is Europe's most abundant falcon, famous for its ability to hover motionless in the wind while scanning for prey. Research has shown kestrels can see ultraviolet light, allowing them to detect vole urine trails that reflect UV. The species has adapted remarkably well to urban environments.
Diều ăn rắn
The secretary bird is the only raptor that hunts primarily on foot, striding through grasslands on crane-like legs up to 1.2 meters tall. Its name may derive from the crest feathers resembling quill pens tucked behind a secretary's ear. The species is classified as Endangered due to habitat loss and decline across much of its range.