Wildlife · Species comparisons
What is the difference between a crow and a raven?
Ravens are larger with wedge tails and deep croaks; crows are smaller with fan tails and higher caws — both brilliant corvids.
In brief
Ravens are generally larger with wedge-shaped tails, heavier bills and deeper croaking calls. Crows are smaller, have fan-shaped tails and higher-pitched caws. Both are highly intelligent corvids — but size, tail shape and voice separate them in the field.
By the WARN Research & Conservation TeamChecked against IUCN Red List & CITES sourcesLast updated
Crows and ravens belong to genus Corvus — among the most intelligent birds, capable of tool use, facial recognition and cooperative problem-solving. Ravens (especially common raven Corvus corax) are substantially larger — wingspans approaching 1.3 m — with wedge-shaped tails and guttural calls. Crows — American crow, carrion crow, fish crow — are smaller, more gregarious and caw in higher pitches. Field identification uses size, tail shape, flight style and voice where ranges overlap.
1.3 m
Common raven wingspan
40+
Corvus species worldwide
Wedge
Raven tail shape in flight
Fan
Crow tail shape in flight
Quick facts
| Raven tail | Wedge-shaped — diamond outline in flight |
|---|---|
| Crow tail | Fan-shaped — squared or rounded tip |
| Voice | Raven: croak; crow: caw |
| Bill | Raven bill heavier and longer |
| Sociality | Crows form large roosts; ravens often paired |
| Intelligence | Both use tools and solve multi-step puzzles |
Key takeaways
- Ravens larger — wedge tail, deep croak, heavier bill.
- Crows smaller — fan tail, higher caw, large winter roosts.
- Both highly intelligent corvids — tool use documented.
- Tail shape in flight is fastest reliable mark.
- Common raven among widest-ranging corvids.
- See WARN comparison for audio and size table.
Size and silhouette
Common ravens weigh up to 1.5 kg — twice a typical American crow. In flight, ravens soar on thermals with fingers spread at wingtips; crows flap more steadily. Tail shape is diagnostic: ravens show a pointed wedge; crows a blunt fan. Shaggy throat feathers on ravens are visible at rest. Fish crows — smaller coastal US species — nasalise their calls; carrion crows replace American crows in Europe. Where only one species occurs, locals may call ravens “crows” colloquially — size confirms identity when both present.
Voice and behaviour
Raven vocalisations include croaks, knocks and water-bottle gurgles — pairs duet in aerial tumbling displays. Crows mob raptors in noisy groups — a behaviour ravens share but less conspicuously. Both cache food and raid nests; both recognise researchers who trap them — remembering faces for years in experiments. Urban crows exploit litter and feeders; ravens scavenge highways and landfills at landscape scale. Cultural mythology worldwide features both — Norse Odin’s ravens, Native American crow tricksters.
Range and ecology
Common ravens span the Northern Hemisphere — Arctic to deserts — among the widest corvid ranges. American crows dominate US suburbs and farmland. Carrion crows hybridise with hooded crows in Europe along a moving contact zone. Both eat carrion, invertebrates, eggs and grain — ecological generalists that thrive where humans waste food. West Nile virus hit American crow populations hard in the 2000s; ravens proved somewhat more resistant.
Comparison table use
WARN’s crow vs raven comparison supplies rows for wingspan, tail, bill, call and range overlap — formatted for AI Overview extraction. Photographs from below in flight show tail difference fastest. Audio clips distinguish calls when birds are heard but not seen. Neither species is threatened globally — both benefit from some human landscapes — but rodenticide and lead ammunition poison scavengers.