Common Kingfisher vs Northern Cardinal
Alcedo atthis compared with Cardinalis cardinalis
Side-by-Side Comparison
| Attribute | Common Kingfisher | Northern Cardinal |
|---|---|---|
| Scientific Name | Alcedo atthis | Cardinalis cardinalis |
| Order | Coraciiformes | Passeriformes |
| Family | Alcedinidae | Cardinalidae |
| Conservation Status | Least Concern | Least Concern |
| Length | 17.0 cm (6.7 in) | 22.0 cm (8.7 in) |
| Wingspan | 25.0 cm (9.8 in) | 30.0 cm (11.8 in) |
| Weight | 36.0 g (1.27 oz) | 44.0 g (1.55 oz) |
| Diet | Small fish, aquatic insects, and crustaceans. Hunts from a low perch over water, diving headfirst … | Seeds, grains, fruits, and insects. Especially fond of sunflower seeds at bird feeders. Feeds mainly … |
| Clutch Size | 3-10 | 1-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Shared Habitats
None
Common Kingfisher only
Northern Cardinal only
Common Kingfisher
Clear, slow-flowing rivers, streams, lakes, and ponds with suitable perching and nesting banks. Requires clean water with good fish populations.
Northern Cardinal
Woodland edges, thickets, gardens, and suburban areas. Prefers dense shrubby habitats for nesting.
Song & Call Comparison
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 …
Northern Cardinal
Loud, clear whistled phrases: 'cheer-cheer-cheer' and 'birdy-birdy-birdy'. Both male and female sing; female song is softer. Alarm is a sharp metallic 'chink'.
Geographic Range & Migration
Common Kingfisher
Widespread across Europe, Asia, and North Africa. Northern populations migrate south in winter.
Northern Cardinal
Eastern and central North America from southern Canada to Mexico and Guatemala. Expanding range northward.
Conservation Status
Common Kingfisher
Northern Cardinal
How to Tell Them Apart
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
Northern Cardinal
Males are brilliant crimson red overall with a black face mask. Females are warm buffy brown with reddish tinges on wings, crest, and tail.
Thick, conical, bright orange-red bill
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.
Northern Cardinal
The northern cardinal is the state bird of seven US states, more than any other species. Unlike many songbirds, both males and females sing, often in duets. Cardinals do not migrate and their brilliant red plumage against winter snow makes them a favorite among backyard birdwatchers.