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This comparison is specifically between the American Crow (Corvus brachyrhynchos) and Common Raven (Corvus corax). The common names “crow” and “raven” do not identify the same two species everywhere, so location matters.
Compare the birds using more than one clue
No single field mark is foolproof. Apparent size changes with distance and posture, and a crow’s tail can look wedge-shaped in some positions. Start with the bird’s overall proportions, then check its tail, bill, throat, voice, behavior, and location.
| Clue | Common Raven | American Crow | How useful it is |
|---|---|---|---|
| Overall size | Substantially larger and heavier-looking; described by Audubon as about hawk-sized. Audubon Field Guide | Smaller, with a more compact appearance. Cornell Lab of Ornithology | Best when the bird is near a familiar bird or object; difficult to judge against open sky. |
| Tail in flight | Longer middle feathers tend to make the spread tail look wedge-shaped. Cornell Lab of Ornithology | Tail tends to look shorter and more squared or fan-shaped. Cornell Lab of Ornithology | Check a spread tail in flight. Feather position, posture, or molt can blur the distinction. |
| Bill and throat | Bill looks heavier and more curved; throat feathers are conspicuously shaggy. Audubon Field Guide | Bill is comparatively smaller, and the throat is less shaggy. Cornell Lab of Ornithology | Helpful on a perched bird or at close range. |
| Voice | Often gives a low, rough, resonant croak or gurgle. Cornell Lab of Ornithology | Known for a caw, but also makes other sounds. Cornell Lab of Ornithology | Listen to a series of calls if possible; one unusual note may mislead. |
| Flight and social context | Often soars or glides and may be seen in pairs. | More often encountered in larger social groups and tends to flap more. | These are tendencies, not rules; use them to support other clues. Audubon/BirdNote |
How to identify a bird you see in flight
- Look at its overall build. A bird that appears broad, large, and heavy-bodied is more likely a raven, especially beside a known size reference. Distance can make this impression unreliable.
- Wait for the tail to spread. A wedge-shaped outline supports raven; a squarer or fan-shaped tail supports crow. Do not use this clue if the tail is closed, partly hidden, or seen only in an awkward posture.
- Notice its flight. Soaring and gliding are more typical of ravens, while crows are more often seen flapping. Treat this as supporting evidence, not a deciding test.
- Listen while watching. A deep, resonant croak points toward raven; a familiar caw points toward crow. Both species have varied vocalizations, so consider a sequence of calls rather than one note.
What to look for on a perched bird
Compare the bill and throat feathers. A raven’s bill is noticeably heavier and more curved-looking, and its throat often appears shaggy. An American Crow’s bill is smaller by comparison and its throat looks less shaggy. These proportions are easier to assess in a close view than in a distant silhouette.
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Overall size can help, but only with context. A raven is substantially larger than an American Crow; without a nearby bird or familiar object, perspective may make the difference hard to judge.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Check whether the North American comparison applies
The familiar comparison is between American Crows and Common Ravens, not every bird called a crow or raven around the world. In parts of North America, other species, including Fish Crow and Chihuahuan Raven, can complicate identification. Outside North America, identify the local species first and use a regional field guide rather than applying this two-species comparison automatically. Cornell discusses these naming and identification caveats in its crow FAQ.
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A field guide can help when the bird is unfamiliar or the local species are difficult to separate. The National Park Service advises that “Field identification of predators is greatly aided by a carrying a bird identification guide.” Its wording is reproduced as written in the NPS field-identification document.
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