Belted Kingfisher vs Northern Gannet
Megaceryle alcyon เปรียบเทียบกับ Morus bassanus
Side-by-Side Comparison
| คุณสมบัติ | Belted Kingfisher | Northern Gannet |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Megaceryle alcyon | Morus bassanus |
| อันดับ | Coraciiformes | Suliformes |
| วงศ์ตระกูล | Alcedinidae | Sulidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 33.0 cm (13.0 in) | 93.0 cm (36.6 in) |
| กว้างปีก | 53.0 cm (20.9 in) | 180.0 cm (70.9 in) |
| น้ำหนัก | 150.0 g (5.29 oz) | 3000.0 g (105.82 oz) |
| อาหาร | Primarily small fish caught by plunge-diving from a perch or hover. Also takes crayfish, frogs, … | Shoaling fish, especially mackerel, herring, and capelin. Plunge-dives from heights of 30 meters at speeds … |
| จำนวนไข่ | 6-7 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Belted Kingfisher
Rivers, streams, lakes, ponds, estuaries, and coastlines with clear water and suitable perches. Nests in burrows dug into earthen banks.
Northern Gannet
Open ocean and coastal waters. Breeds in dense colonies on steep rocky islands and sea stacks.
Song & Call Comparison
Belted Kingfisher
A loud, rattling 'klee-klee-klee-klee' — mechanical and penetrating. Given in flight along rivers. Also a harsh 'kekekek' near nest. Far louder than Common Kingfisher.
Northern Gannet
Loud, harsh 'urrah-urrah' grunting and croaking at breeding colonies on sea stacks. Also gives a softer 'karrr' in flight. Large colonies are extremely noisy during the breeding season.
Geographic Range & Migration
Belted Kingfisher
North America from Alaska and Canada to Central America and the Caribbean. Northern populations migrate south in winter.
Northern Gannet
North Atlantic, breeding from Newfoundland and Gulf of St. Lawrence to Norway, Iceland, and Britain. Winters at sea south to the tropics.
สถานะการอนุรักษ์
Belted Kingfisher
Northern Gannet
How to Tell Them Apart
Belted Kingfisher
Blue-grey upperparts with a shaggy crest and a white collar. Males have a single blue-grey breast band; females have an additional rufous belly band.
Long, heavy, straight, dark dagger-like bill
Northern Gannet
Brilliant white body with black wingtips and a golden-yellow wash on the head and nape. Blue-grey bill with dark lines and pale blue eye-ring.
Long, straight, pointed, pale blue-grey bill with serrated edges
About These Birds
Belted Kingfisher
The belted kingfisher is unusual in that the female is more colorful than the male, sporting an additional rufous belly band. These noisy birds announce their territory with a distinctive rattling call. They excavate nesting burrows up to 2.4 meters deep into riverbanks using their heavy bills.
Northern Gannet
The northern gannet is a spectacular plunge-diver, folding its two-meter wingspan into an arrow shape to hit the water at up to 100 km/h. Air sacs under the skin and a reinforced skull protect it from the impact. Bass Rock in Scotland hosts over 150,000 gannets, the largest single colony of any seabird in the world.