12 Fascinating Facts About Crows

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Crows often get a bad rap. In many Western cultures, they've historically been associated with death, disease, and bad omens, reviled as crop-stealers by farmers, and condemned as nuisances by city dwellers. But the birds are fascinating creatures, adaptable and brainy to an extent that's almost scary. Here are a few facts about the corvids that might surprise you.

1. ALL CROWS AND RAVENS BELONG TO THE SAME GENUS.

Members of the Corvus genus can be found on every continent except Antarctica and South America (although other close relatives live there). To date, scientists have named 40 species. Colloquially, some of them are referred to as ravens while others are called crows or jackdaws.

Historically, the name raven has been given to several of the big-bodied Corvus birds with shaggy feathers on their necks. Mid-sized members of the genus are usually called crows, while the very smallest species go by the name jackdaws. There's also a large-beaked outlier known as the rook, which was named after the unusual sound it makes. But pervasive as these labels may be, they're not scientific and do not reflect the latest research. Despite its informal name, the so-called Australian raven is more closely akin to the Torresian crow than it is to the common raven.

In the U.S., when people talk about crows and ravens, they're usually referring to the American crow (Corvus brachyrhynchos) and the common raven (Corvus corax). Telling them apart can be tough, but it is possible for eagle-eyed birders. One big indicator is size: The common raven is much larger, about the size of a red-tailed hawk. It also has a more wedge-shaped tail. As Kevin J. McGowan of the Cornell Lab of Ornithology writes on his crow FAQ page, ravens soar longer than crows, and you can see through their wing feathers as they fly (among other differences). And the birds' calls are substantially different. "American crows make the familiar caw-caw, but also have a large repertoire of rattles, clicks, and even clear bell-like notes," McGowan writes, whereas common ravens have "a deep, reverberating croaking or gronk-gronk. Only occasionally will a raven make a call similar to a crow's caw, but even then it is so deep as to be fairly easily distinguished from a real crow."

You can hear crow vocalizations here and raven vocalizations here.

2. OLDER SIBLINGS CAN HELP THEIR PARENTS RAISE NEWBORN CHICKS.

Like a lot of intelligent animals, most crows are quite social. For instance, American crows spend most of the year living in pairs (they usually mate for life) or small family groups. During the winter months, they'll congregate with hundreds or even thousands of their peers to sleep together at night in a sprawling communal unit called a roost.

Come nesting season, a mated pair of crows might be lucky enough to receive chick-rearing help. Juvenile birds are frequently seen defending their parents' nest from predators. Other services they can provide include bringing food to mom and dad, or feeding their younger siblings directly. One study found that 80 percent of American crow nests surveyed had a helping hand. And some birds become regular nest assistants, providing aid to their parents for over half a decade.

3. WHEN A CROW DIES, ITS NEIGHBORS MAY THROW A FUNERAL.

The sight of a dead crow tends to attract a mob of a hundred or more live ones. During this ritual, the live crows almost never touch the dead one, which rules scavenging out as a motive. Why do they do this? Some studies suggest that the mass gathering is part of a survival strategy: The birds are learning about threats and seem hesitant to revisit any spot where they've encountered a dead crow, even if food is plentiful there.

4. THEY'VE CAUSED BLACKOUTS IN JAPAN.

Since the 1990s, crows have experienced a population boom in Japan, where—not coincidentally—delicious garbage is more plentiful than ever before. This is bad news for power companies. Urban crows like to nest on electric transformers and will often use wire hangers or fiberoptic cables as building materials for their nests. The result was an epidemic of crow-caused blackouts in major cities around Japan: Between 2006 and 2008, the corvids stole almost 1400 fiberoptic cables from Tokyo power providers, and according to the Chubu electric company, crows are responsible for around 100 power failures per year in their facilities alone.

To fight back, Chubu started installing artificial "love nests" in 2004. Made with non-conductive resin, the nests are placed on company towers high above the power lines, where the birds are unlikely to cause any trouble. The strategy seems to be working: 67 percent of the faux nests are currently in use, making life a lot easier for Chubu employees.

5. PROPORTIONALLY, THE BRAINS OF SOME CROWS ARE BIGGER THAN YOURS.

According to McGowan, crows are "smarter than many undergraduates, but probably not as smart as ravens."

Crows are so smart and so good at improvising that some zoologists admiringly call them "feathered apes." And yet, from a primate's perspective, crow brains might look puny. The New Caledonian crow, for example, has a brain that weighs just 0.26 ounces. But relative to its body size, that brain is huge, accounting for 2.7 percent of the bird's overall weight. By comparison, an adult human's three-pound brain represents 1.9 percent of their body weight.

Of all the living birds, crows, ravens, and parrots have the biggest brain-to-body size ratios. And in lab experiments, these avians show a degree of cognition that puts them on par with the great apes. In fact, research has shown that they have a much higher density of neurons in their forebrains than primates do. The amount of neurons in this region is thought to correlate with a given animal's intelligence. Theoretically, having more neurons translates to better cognitive reasoning. Thus, it looks like crows, ravens, and parrots have enviable minds indeed.

6. CROWS HAVE REGIONAL DIALECTS—WHICH THEY CAN DELIBERATELY CHANGE.

Apart from the famous caw, caw noise, crows emit a number of other sounds. Each one sends out a different message; for example, cawing can be used as a territorial warning—or a way for crows to signal their location to relatives.

This avian language isn't homogeneous; two different populations of crows may have slight differences. As ornithologist John M. Marzluff and author Tony Angell noted in their 2005 book In the Company of Crows and Ravens, the calls these birds use "vary regionally, like human dialects that can vary from valley to valley." And there's more: If a crow changes its social group, the bird will try to fit in by talking like the popular guys. "When crows join a new flock," Marzluff and Angell wrote, "they learn the flock's dialect by mimicking the calls of dominant flock members."

7. CERTAIN CROWS KNOW HOW TO READ TRAFFIC LIGHTS.

In Japan, carrion crows (Corvus corone) use cars like oversized kitchen appliances. The birds have learned to take walnuts—a favorite treat—over to road intersections, where they put the hard-shelled snacks down onto the pavement. The crow then waits for a passing vehicle to smash the nut, after which it will swoop down and eat the delicious interior.

It's a risky trick, but the crows aren't usually run over because (unlike some people) they've figured out what traffic lights mean. Carrion crows wait until the light turns red before flying down to place the un-cracked nut on the road. The second the light goes green, the crow takes off to watch the nut get run over from afar; it will even wait for the next red to scoop up the nut's insides.

This behavior isn't limited to just one corvid species: American crows have been observed doing the same thing in California.

8. THEY CAN RECOGNIZE YOUR FACE—AND HOLD A GRUDGE.

You don't want a crow for an enemy. In 2011, a team from the University of Washington published a remarkable study about the brainpower of local crows. The researchers' goal was to figure out how well the birds could identify human faces. So—in the name of science—they went out and bought two Halloween masks: One resembled a caveman, the other looked like Dick Cheney. It was decided that the caveman getup would be used to threaten the birds, while the Cheney mask was relegated to control status.

At the five sites, a scientist donned the caveman mask before catching and banding some wild crows. Getting trapped is never a fun experience, and upon their release, the ex-captives loudly "scolded" their assailant with a threatening caw. Seeing this, other birds who had been sitting nearby joined in the fray, swooping down to harass the neanderthalic visitor. Over a period of several years, both masks were regularly worn by team members on strolls through all five test spots. Without fail, the caveman mask was greeted by angry scolds and dive-bomb attacks from crows—including many who'd never been captured or banded—while the birds largely ignored the Dick Cheney mask.

Amazingly, the caveman disguise continued to provoke a hostile response five years into the experiment—even though the team had stopped trapping crows after those first few site visits. And some of the birds who antagonized the mask-wearer weren't even alive back when the whole thing started. The younger crows couldn't possibly have seen the imitation caveman grab an acquaintance of theirs—but they scolded it anyway. Clearly, the grudge had been passed on; birds were still attacking the mask as recently as 2013.

The moral of this story? Mind your manners around crows. Because if you mistreat them, they won't forget you and neither will their friends—or the next generation.

9. NEW CALEDONIAN CROWS MAKE AND USE TOOLS.

Lots of non-human animals, including chimpanzees and orangutans, create useful implements which help them survive in the wild. The New Caledonian crow (Corvus moneduloides) is one of only two species on the planet that can craft its own hooks in the wild. The other is called Homo sapiens. The South Pacific avian uses the hooks—which are made from pliable twigs that the crows bend using their beaks and feet into a J-shape—to extract insects from tight crevices.

Another surprising attribute is this species' weirdly shaped maw. Unlike virtually all other birds, the New Caledonian crow has a bill that does not curve downwards. For years, the quirk went unexplained, but scientists now think that the avian's unique beak evolved to help it grasp tools more easily, as well as to better see what the tool is doing.

The New Caledonian crow isn't the only implement expert in the corvid family. In 2016, scientists at the University of St. Andrews demonstrated that the ultra-rare Hawaiian crow, or ‘Alalā (Corvus hawaiiensis), is similarly adept at using and modifying tools.

10. THE BIRDS FIGHT OFF PREDATORS BY GANGING UP ON THEM.

Crows have to deal with a menagerie of predators, such as hawks, owls, coyotes, and raccoons. To ward them off, the corvids exploit the fact that there can be strength in numbers. Upon seeing a would-be attacker, crows are known to gather en masse, with some groups consisting of a dozen birds or more. Individual crows then swoop down to deliver passing blows with their beaks, often inflicting serious bodily injury in the process. If all goes well, the target will back off—though it may kill a few of the dive-bombers before they retreat. Of course, corvids are by no means the only avians that mob would-be attackers. Swallows, chickadees, and even hummingbirds have all been documented doing this. In fact, crows are sometimes at the receiving end of mob violence as smaller songbirds often feel threatened by them and lash out collectively.

11. CORVIDS UNDERSTAND A THING OR TWO ABOUT IMPULSE CONTROL.

A 2014 study shows that at least some corvids can resist the urge for instant gratification—if you make it worth their while. The research was led by University of Göttingen graduate student Friederike Hillemann, whose team assembled five common ravens and seven carrion crows. Through careful note-taking, the scientists figured out what the favorite meal items of all 12 animals were. Then the experiment began.

With an outstretched hand, one of the researchers gave each of their birds a morsel of food. Then, the animals were shown a different piece of grub. The corvids were made to understand that if they liked the second option better, they could swap snacks—but only if they were willing to sit patiently for a certain period of time first. If a bird ate the original treat during that stretch, it forfeited the chance to trade it for a new one.

Hillemann's results showed that the crows and ravens didn't mind waiting around for an improved snack option. As such, a bird with a piece of bread was content to sit quietly if it knew that some fried pork fat would eventually be gained in the trade-off. However, if that same bird's second choice was another piece of bread, sitting tight would be pointless. So understandably, corvids who were put in this kind of situation tended to go ahead and eat whatever they'd been given. Why wait for more of the same?

12. YOU CAN CALL A GROUP OF CROWS A MURDER, BUT SOME SCIENTISTS WOULD RATHER YOU DIDN'T.

According to the Oxford English Dictionary (OED), the correct term for a group of crows is a murder, an expression bird-watchers and poets have been using since at least the 15th century, which the OED speculates may allude "to the crow's traditional association with violent death, or … to its harsh and raucous cry." But maybe it's time to come up with a replacement. McGowan hates the phrase "murder of crows." To him, it only feeds the public's negative outlook on the animals. "These birds aren't a gang of nasty villains," he wrote in the book Birdology. "These birds are just birds." McGowan would also have you know that American crows rank among "the most family-oriented birds in the world."

Hee-Haw: The Wild Ride of "Dominick the Donkey"—the Holiday Earworm You Love to Hate

Delpixart/iStock via Getty Images
Delpixart/iStock via Getty Images

Everyone loves Rudolph the Red-Nosed Reindeer. He’s got the whole underdog thing going for him, and when the fog is thick on Christmas Eve, he’s definitely the creature you want guiding Santa’s sleigh. But what happens when Saint Nick reaches Italy, and he’s faced with steep hills that no reindeer—magical or otherwise—can climb?

That’s when Santa apparently calls upon Dominick the Donkey, the holiday hero immortalized in the 1960 song of the same name. Recorded by Lou Monte, “Dominick The Donkey” is a novelty song even by Christmas music standards. The opening line finds Monte—or someone else, or heck, maybe a real donkey—singing “hee-haw, hee-haw” as sleigh bells jingle in the background. A mere 12 seconds into the tune, it’s clear you’re in for a wild ride.

 

Over the next two minutes and 30 seconds, Monte shares some fun facts about Dominick: He’s a nice donkey who never kicks but loves to dance. When ol’ Dom starts shaking his tail, the old folks—cummares and cumpares, or godmothers and godfathers—join the fun and "dance a tarentell," an abbreviation of la tarantella, a traditional Italian folk dance. Most importantly, Dominick negotiates Italy’s hills on Christmas Eve, helping Santa distribute presents to boys and girls across the country.

And not just any presents: Dominick delivers shoes and dresses “made in Brook-a-lyn,” which Monte somehow rhymes with “Josephine.” Oh yeah, and while the donkey’s doing all this, he’s wearing the mayor’s derby hat, because you’ve got to look sharp. It’s a silly story made even sillier by that incessant “hee-haw, hee-haw,” which cuts in every 30 seconds like a squeaky door hinge.

There may have actually been some historical basis for “Dominick.”

“Travelling by donkey was universal in southern Italy, as it was in Greece,” Dominic DiFrisco, president emeritus of the joint Civic Committee of Italian Americans, said in a 2012 interview with the Chicago Sun-Times. “[Monte’s] playing easy with history, but it’s a cute song, and Monte was at that time one of the hottest singers in America.”

Rumored to have been financed by the Gambino crime family, “Dominick the Donkey” somehow failed to make the Billboard Hot 100 in 1960. But it’s become a cult classic in the nearly 70 years since, especially in Italian American households. In 2014, the song reached #69 on Billboard’s Holiday 100 and #23 on the Holiday Digital Song Sales chart. In 2018, “Dominick” hit #1 on the Comedy Digital Track Sales tally. As of December 2019, the Christmas curio had surpassed 21 million Spotify streams.

“Dominick the Donkey” made international headlines in 2011, when popular BBC DJ Chris Moyles launched a campaign to push the song onto the UK singles chart. “If we leave Britain one thing, it would be that each Christmas kids would listen to 'Dominick the Donkey,’” Moyles said. While his noble efforts didn’t yield a coveted Christmas #1, “Dominick” peaked at a very respectable #3.

 

As with a lot of Christmas songs, there’s a certain kitschy, ironic appeal to “Dominick the Donkey.” Many listeners enjoy the song because, on some level, they’re amazed it exists. But there’s a deeper meaning that becomes apparent the more you know about Lou Monte.

Born Luigi Scaglione in New York City, Monte began his career as a singer and comedian shortly before he served in World War II. Based in New Jersey, Monte subsequently became known as “The Godfather of Italian Humor” and “The King of Italian-American Music.” His specialty was Italian-themed novelty songs like “Pepino the Italian Mouse,” his first and only Top 10 hit. “Pepino” reached #5 on the Billboard Hot 100 in 1963, the year before The Beatles broke America.

“Pepino” was penned by Ray Allen and Wandra Merrell, the duo that teamed up with Sam Saltzberg to write “Dominick the Donkey.” That same trio of songwriters was also responsible for “What Did Washington Say (When He Crossed the Delaware),” the B-side of “Pepino.” In that song, George Washington declares, “Fa un’fridd,” or ‘It’s cold!” while making his famous 1776 boat ride.

With his mix of English and Italian dialect, Monte made inside jokes for Italian Americans while sharing their culture with the rest of the country. His riffs on American history (“What Did Washington Say,” “Paul Revere’s Horse (Ba-cha-ca-loop),” “Please, Mr. Columbus”) gave the nation’s foundational stories a dash of Italian flavor. This was important at a time when Italians were still considered outsiders.

According to the 1993 book Italian Americans and Their Public and Private Life, Monte’s songs appealed to “a broad spectrum ranging from working class to professional middle-class Italian Americans.” Monte sold millions of records, played nightclubs across America, and appeared on TV programs like The Perry Como Show and The Ernie Kovacs Show. He died in Pompano Beach, Florida, in 1989. He was 72.

Monte lives on thanks to Dominick—a character too iconic to die. In 2016, author Shirley Alarie released A New Home for Dominick and A New Family for Dominick, a two-part children’s book series about the beloved jackass. In 2018, Jersey native Joe Baccan dropped “Dominooch,” a sequel to “Dominick.” The song tells the tale of how Dominick’s son takes over for his aging padre. Fittingly, “Dominooch” was written by composer Nancy Triggiani, who worked with Monte’s son, Ray, at her recording studio.

Speaking with NorthJersey.com in 2016, Ray Monte had a simple explanation for why Dominick’s hee-haw has echoed through the generations. “It was a funny novelty song,” he said, noting that his father “had a niche for novelty.”

Cats Make Facial Expressions, But Not Everyone Can Read Them

takoburito/iStock via Getty Images
takoburito/iStock via Getty Images

Science has finally confirmed what humans have suspected for centuries: Cats are inscrutable creatures prone to peculiar behavior. Some of us, however, are still capable of picking up on their subtle emotional cues, including facial expressions, without relying on clues like tails, ears, or whiskers.

This new evidence of a cat’s slightly malleable face comes from a study in the journal Animal Welfare. Researchers at the University of Guelph in Ontario, Canada, recruited 6329 participants to watch a series of 20 video clips featuring cats reacting to either a positive or negative event. A positive interaction was defined as a feline approaching a human for a treat or an owner-identified action the cat traditionally found pleasant, like climbing into a favorite spot. A negative response was when a cat was confronted with something it wanted to avoid, was prevented from going into an area or outside, or was displaying an obvious sign of distress, like growling. (Sounds were edited out.) Most clips were from YouTube, though some were submitted by veterinarians and university colleagues. Breeds with long hair that might obscure facial changes were omitted. Most respondents were cat owners, and 74 percent were women 18 to 44 years old.

Using these brief clips, the researchers asked subjects to classify the cats as exhibiting positive or negative behavior by relying only on closely cropped footage of a cat’s face. They couldn’t rely on the tail or any other body language. The result? The average score was just 59 percent correct, accurately identifying a cat’s mood in an average of 12 out of the 20 clips. These humans, in other words, had little idea what a cat was experiencing based solely on their faces.

So why do researchers think they have any expression at all? Roughly 13 percent of subjects scored well on the test, getting at least 15 of the 20 questions correct. Those that did well were generally people who had extensive experience with cats, like veterinarians. That led researchers to conclude that people can become more attuned to the subtle flickers of emotion that may pass over a cat’s face.

“They could be naturally brilliant, and that’s why they become veterinarians,” Georgia Mason, a behavioral biologist and the study’s senior author, told The Washington Post. “But they also have a lot of opportunity to learn, and they’ve got a motivation to learn, because they’re constantly deciding: Is this cat better? Do we need to change the treatment? Does this cat need to go home? Is this cat about to take a chunk out of my throat?”

The paper appears to offer encouraging evidence that “cat whisperers” really do exist. If you’re curious whether you could be one of them, you can take a shortened version of the video test online.

[h/t Washington Post]

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