Species Guide: Belted Kingfisher (Megaceryle alcyon)
Family: Alcedinidae
The Belted Kingfisher is a distinctive aquatic bird native to North and Central America. As a member of the family Alcedinidae, it is the most widespread kingfisher in northern North America. This species is recognized for its rattling call and plunge-diving behavior.
Appearance
Adult belted kingfishers are robust-looking birds characterized by large heads, prominent shaggy crests, and long, dagger-shaped bills adapted for fishing. Their plumage is predominantly blue-gray on the upper parts and white on the underparts.
Male belted kingfishers exhibit a single blue band across the chest. In contrast, females are more vibrantly colored, displaying both the blue chest band and an additional chestnut-colored band across the belly, which is atypical among bird species.
Juvenile belted kingfishers resemble adult females but exhibit duller plumage and less-defined chest bands. Their coloration becomes more distinct as they mature.
Diet
The belted kingfisher is primarily piscivorous, i.e., they feed mainly on fish. Its diet also includes crayfish, aquatic insects, amphibians, and, when fish are scarce, small reptiles or berries.
Hunting usually involves perching over water and watching for movement. Once prey is spotted, the bird dives headfirst to snatch it with its bill.
Habitat
This species inhabits rivers, streams, lakes, ponds, estuaries, and coastal shorelines, and consistently remains in close proximity to water.
A key habitat requirement is the presence of vertical or near-vertical earthen banks, which are necessary for nesting as the birds excavate burrows within them. Clear water and abundant perches for hunting are also critical components of habitat.
Behavior
Belted kingfishers are generally solitary and territorial, especially during the breeding season. Males establish and vigorously defend territories along stretches of water.
The species produces a piercing, rapid, rattling call that often signals its presence before visual detection.
During the breeding season, pairs excavate deep tunnels in earthen banks, which may extend several meters. Eggs are deposited at the tunnel terminus in a simple chamber, and both parents participate in incubation and feeding of the young.
After hatching, chicks are altricial, i.e., they emerge helpless and need extensive parental care. They fledge after several weeks and progressively attain independence.
Biometrics
Belted kingfishers have a body length of 28 to 35 centimeters and a wingspan ranging from 48 to 58 centimeters.
Individuals typically weigh approximately 150 grams, though this value may vary. The combination of a large head, substantial bill, and compact body produces a distinctive silhouette.
| Length | 28-35 cm |
| Wing Span | 48-58 cm |
| Body Weight | 150 grams |
| Longevity | 6-10 Years |
Natural Predators
Adult belted kingfishers face few natural predators, primarily raptors such as hawks and falcons, including Cooper’s hawk and peregrine falcon. When threatened, belted kingfishers frequently elude predators by repeatedly dipping into water until the threat subsides.
Relationship to Humans
Belted kingfishers are highly regarded by birdwatchers and naturalists due to their distinctive appearance and energetic behavior.
In folklore, kingfishers are symbols of calm seas and good fortune. The expression “halcyon days” originates from Greek mythology, which asserted that kingfishers calmed winds and waves during nesting. The species name “alcyon” is derived from this myth.
Fish hatcheries may perceive belted kingfishers unfavorably due to their predation on juvenile fish.
Conservation Status
The belted kingfisher is classified as a species of least concern by the IUCN (International Union for the Conservation of Nature), with an estimated global population of approximately 1.7 million individuals.
Population trends remain mostly stable across its range, though local declines may result from habitat loss, water pollution, or reduced nesting sites.
Overall, the belted kingfisher remains widespread and its populations are considered secure.
Global
Conservation Status
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References
- Lovette, I. et al. (2016) The Cornell Lab of Ornithology, handbook of bird biology. Third edition. Chichester: Wiley. [Accessed 17/04/2026]
- Hendricks, P. and Hendricks, L.M. (2021) “Context of rattle-call use by adult Belted Kingfishers (Megaceryle alcyon) near their nests,” The Wilson journal of ornithology, 133(4), pp. 629–634. [Accessed 17/04/2026]
- Booth, H. et al. (2021) “On the marine feeding behavior and activity budgets of Belted Kingfishers (Megaceryle alcyon) during the post-fledging period,” The Wilson journal of ornithology, 133(2), pp. 291–295. [Accessed 17/04/2026]
- Sullivan, S.M.P., Watzin, M.C. and Hession, W.C. (2006) “Differences in the Reproductive Ecology of Belted Kingfishers (Ceryle alcyon) Across Streams with Varying Geomorphology and Habitat Quality,” Waterbirds (De Leon Springs, Fla.), 29(3), pp. 258–270. [Accessed 17/04/2026]
