Happy Halloween, birders. Today the world is full of black cats, bats, and skeletons, but the real stars of the spooky season have feathers. Few birds have haunted the human imagination like crows and ravens. They show up in myths, legends, and some of the most famous gothic stories ever written.
They’re also some of the most commonly confused birds on the continent. Most people know “the crow” and “the raven,” but the United States and Canada have several species, and telling them apart is a classic birding challenge. Here’s your Halloween field guide to these black-feathered birds.
Meet the Family
Here are five crow and raven species to know in the United States and Canada.
American Crow. This is the default crow across much of the continent. It’s the one you see in parking lots, farm fields, and city parks, and it gives the classic, clear “caw.” If you’ve seen a crow, odds are it was this one. Coastal birds once classified as Northwestern Crows are now considered American Crows, following a taxonomic change in 2020.
Fish Crow. Found in the eastern and southeastern United States, especially along the Atlantic and Gulf coasts and up major rivers, the Fish Crow is slightly smaller than the American Crow and looks almost identical. The giveaway is its voice. Instead of a strong caw, it makes a more nasal, often two-note call that sounds a bit like “uh uh.” This is a bird you identify by ear.
Tamaulipas Crow. This small crow has a very limited range in the United States, essentially the far southern tip of Texas near Brownsville. It looks glossy and compact, and its call is unlike the familiar American Crow’s caw: a low, croaking sound that people often compare to a frog or a toad.
Common Raven. The largest bird in this lineup, and the one with the widest global range. Common Ravens live across much of Canada, Alaska, the West, and the Appalachians, and they’re the species people usually picture in spooky stories. They’re about the size of a Red-tailed Hawk, with a heavy bill, a shaggy throat, and a deep, rough croak.
Chihuahuan Raven. A raven of the dry Southwest and southern Great Plains, found especially in open grasslands and other dry country. It’s smaller than a Common Raven and closer in size to an American Crow, and the two ravens can be very hard to separate by sight. Its voice is generally higher pitched than a Common Raven’s, and the bases of its neck feathers are white, though that’s tough to see unless the wind lifts the feathers just right.
Raven or Crow? The Quick Test
Ravens and crows are close relatives and both are black, but a few clues help you sort them out. These comparisons are most useful for telling an American Crow from a Common Raven.
Size. Common Ravens are noticeably bigger and bulkier than American Crows. Size is easiest to judge when two birds are side by side.
Tail shape. This is one of the best clues in flight. A Common Raven’s tail is wedge-shaped or diamond-shaped because the middle feathers are longer. An American Crow’s tail looks more like a fan, with a straight or gently curved edge.
Voice. American Crows give the familiar caw. Common Ravens give deep croaks, and they also make an astonishing range of other sounds, including clicks, gurgles, and knocks.
Bill and throat. Common Ravens have a big, thick bill and a shaggy throat. American Crows have a smaller bill and a smoother throat.
Flight style. Common Ravens often soar and glide, sometimes tumbling in the air. American Crows tend to flap more steadily, although they can glide too.
Company. American Crows are social and often gather in groups, especially in fall and winter. Common Ravens are frequently seen alone or in pairs, though they also gather around food. Chihuahuan Ravens can form large flocks, so company alone won’t settle the question.
Where You Live Does Half the Work
For crows and ravens, location is one of the most useful clues. Depending on where you live, your most likely options might be American Crow and Common Raven, or American Crow and Fish Crow. A quick look at a range map can eliminate many of the options before you even raise your binoculars.
Voice matters too, especially for the look-alikes. Fish Crows and Tamaulipas Crows are best separated from American Crows using sound and range rather than sight alone. One small caution, though: young American Crows make nasal begging calls that can sound a lot like a Fish Crow, so it pays to listen carefully and not jump to conclusions.
Why They Seem So Spooky
Part of the reputation comes from folklore. Ravens in particular have been tied to omens, prophecy, and mystery for centuries, and they appear in countless stories, including one of the most famous poems in American literature. Even the words people use for them add to the mood. A group of crows is traditionally called a murder, and a group of ravens is called an unkindness.
But the real reason these birds feel a little uncanny may be their intelligence. Crows and ravens are among the smartest birds in the world. Research has shown that crows can recognize individual human faces and remember people who have threatened them, and they can pass that information along to other crows. They solve puzzles, adapt to many environments, and can even hold what looks a lot like a grudge.
In fall and winter, American Crows gather in enormous communal roosts at dusk, sometimes numbering in the thousands. If you’ve ever watched a huge dark cloud of birds pour into the trees at sunset, you’ve seen one of the most dramatic sights in birding, and it’s especially fitting this week.
A Halloween Challenge
Today, try to find at least one crow or raven and see if you can name the species. Check where you are, look at the tail in flight, listen for the call, and compare the size with other birds nearby. You might be surprised how quickly the clues start to click.
If you find a roost, just enjoy the show from a distance. And if a crow seems to be watching you, remember that it just might be.
Which crow or raven did you spot this Halloween? Tell us where you are and what you found.
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