Half-collared Kingfisher vs Common Kingfisher

Alcedo semitorquata compared with Alcedo atthis

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Side-by-Side Comparison

Attribute Half-collared Kingfisher Common Kingfisher
Scientific Name Alcedo semitorquata Alcedo atthis
Order Coraciiformes Coraciiformes
Family Alcedinidae Alcedinidae
Conservation Status Least Concern Least Concern
Length 17.0 cm (6.7 in)
Wingspan 16.1 cm (6.3 in) 25.0 cm (9.8 in)
Weight 45.5 g (1.60 oz) 36.0 g (1.27 oz)
Diet -- Small fish, aquatic insects, and crustaceans. Hunts from a low perch over water, diving headfirst …
Clutch Size 2-6 3-10
Population Trend
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Size Comparison

Body Length
Half-collared Kingfisher
Common Kingfisher 17.0 cm
Wingspan
Half-collared Kingfisher 16.1 cm
Common Kingfisher 25.0 cm
Weight
Half-collared Kingfisher 45.5 g
Common Kingfisher 36.0 g
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Habitat Comparison

Shared Habitats

Half-collared Kingfisher only

None

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.

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Song & Call Comparison

Half-collared Kingfisher

Common Kingfisher

Song

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 …

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Geographic Range & Migration

Half-collared Kingfisher

Common Kingfisher

Widespread across Europe, Asia, and North Africa. Northern populations migrate south in winter.

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Conservation Status

Least Concern

Half-collared Kingfisher

Least Concern

Common Kingfisher

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How to Tell Them Apart

Half-collared Kingfisher

Common Kingfisher

Plumage

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.

Bill

Long, straight, dagger-like dark bill — orange base on the lower mandible in females

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About These Birds

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.

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Related Comparisons

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