Buzz
Ducks have been a source of fascination for many of us since childhood. Whether it was chasing after ducklings or admiring their cuteness, they captured our hearts with their quirky quacks and large, webbed feet. Ducks are often seen as adorable and amusing creatures, gliding peacefully through lakes and rivers or nibbling on breadcrumbs. Donald Duck remains an iconic character worldwide, even without wearing pants.
Yet, ducks are not as innocent as they may appear. Behind their charming exterior, there lies a darker side to these creatures, one that most people are unaware of. Ducks can display aggression and engage in violent behavior. Their bizarre anatomy and peculiar actions are unlike anything seen in other animals.
For too long, ducks have been admired as harmless and comical. Too long have we remained oblivious to the darker side of our seemingly friendly feathered friends.
10. Duck Genitalia
Did you know that the shape of a duck’s penis resembles a corkscrew? These organs are stored in sacs beneath their bodies, but when a male duck becomes aroused, his penis can extend up to 20 centimeters (8 inches) long. That’s roughly a quarter of the duck’s body length. For comparison, imagine a human with a member the size of their forearm. Even more oddly, 97 percent of bird species don’t have a penis at all.
As if that weren't strange enough, the penises of ducks are sharp and covered with backward-facing spikes. These spikes are designed to painfully pierce the female duck, ensuring she cannot escape. They latch into her vagina like a series of sharp hooks.
Another stark contrast between the penis of mammals (like humans) and ducks is that male ducks don't wait for an erection before mating. Instead, they everts their penis directly into the female’s vagina, stabbing her in a single, swift motion—almost as if using a grappling hook.
9. Mating Rituals
How have female ducks adapted to cope with the disturbing genitalia of their male counterparts? To counter the clockwise-shaped penises, the females have developed counterclockwise vaginas that confuse and deflect them. Additionally, they have complex tunnels which serve as a barrier against complete penetration.
Why? Why does this happen? Because ducks engage in forced copulation all the time.
This violent mating behavior has led to what scientists call a “sexual arms race.” The more intimidating the male genitalia, the more intricate and defensive the female genitalia become. It demonstrates that female ducks are not passive participants in these forceful acts of copulation.
Ducks also frequently take part in gang rape. Yes, gang rape. It’s not uncommon for three to six male ducks to chase and violently assault a single female. On the flip side, if a female duck is attracted to the male courting her, she can relax certain muscles to ensure that the sperm of the chosen male successfully fertilizes her eggs.
Only about 3 percent of forced copulations lead to the birth of ducklings, which offers a bit of comfort. Still, it’s not exactly reassuring.
8. Straight-Up Murder
If you’ve ever lived near a lake or spent much time around ducks, you’ve likely witnessed some serious duck-on-duck violence. At times, it even escalates to duck murder. The breeding season for ducks is a harsh period, especially for the females, as previously discussed.
Occasionally, ducks will actually drown one another during mating. While most females will lose a few feathers from their heads and necks due to the males biting them, some females may even lose eyes during these violent encounters.
On rare occasions, humans also commit heinous acts against ducks. In 2013, a popular Texas duck named George was brutally killed, prompting both The Humane Society and San Antonio Crime Stoppers to offer a substantial reward for information about the perpetrators.
George the duck was an exceptionally friendly bird who loved to tug on people's pant legs. Often fed by nearby restaurants, he became a well-known figure and a beloved tourist attraction along the River Walk. Despite a reward of over $10,000, the culprits behind his tragic death were never identified.
7. Duck Poop-Borne Diseases
Poop is hardly ever clean, and around most lakes and rivers, the poop of ducks and geese piles up in little smelly white heaps. Ducks leave droppings everywhere, and it's no surprise that too much poop can cause health issues for both humans and other animals.
The CDC warns that duck droppings can carry harmful diseases, such as E.coli and Salmonella. Every year, many people who interact with their own pet ducks or geese contract Salmonella infections. In 2016 alone, there were 895 reported cases among bird owners. Many more go unreported. A Salmonella infection is generally not fatal, though it often causes intense diarrhea and nausea.
However, duck droppings may contain up to 60 different diseases, some of which can be extremely dangerous to humans. Histoplasmosis, a respiratory disease caused by a fungus that thrives on dried duck droppings, can even be deadly. The safest advice? Stay away from any type of poop. But given how ubiquitous duck droppings are, it’s best to be cautious—they could pose a serious health risk.
6. The Hard Life Of A Duckling
Many ducklings, those adorable little cheepers who follow their mothers around the pond, won’t survive to adulthood. The survival rate is grim: Only about 60 percent make it to become fully independent ducks.
Several factors affect a duckling’s chances of survival. For example, bad weather can be a deadly obstacle. Hailstorms have been known to wipe out a significant number of these fragile creatures. However, the biggest factor affecting survival is habitat. A safe and suitable environment that shields the duck family from harsh weather and predators is critical. But with the growing number of human settlements and artificial ponds, finding a good habitat is increasingly difficult.
Ducklings are also easy prey for a variety of other animals. Even fish can swim up to the surface and snatch them up. A sufficiently large bullfrog will happily devour a duckling as well.
Hawks, foxes, snakes, and turtles are all too eager to feast on a duckling. These defenseless baby birds are vulnerable until they mature at 50–70 days of age, when they finally gain the ability to fly. However, even then, they can never escape the evil that resides within themselves.
5. Gastroliths
Picture yourself strolling along a beach, picking up the sharpest rocks you can find, and popping them into your mouth. You swallow the sharp rocks, and they end up in your small, secondary stomach. This stomach is known as a gizzard. Most birds have one.
Why do ducks swallow sharp rocks and pebbles? To help grind up the bones of fish they swallow whole. That’s right—they create their own set of teeth, DIY-style. This process is called gastroliths.
Once the rocks lose their sharpness, ducks will vomit them up and search for new, sharper stones. So, you could end up with a smooth, rounded stone that once resided in a duck’s gizzard.
Occasionally, ducks swallow more than just ordinary rocks. There are reports of miners discovering actual gold in the gizzards of ducks and other birds. The miners simply followed the ducks to places where they had scratched the earth and uncovered gold veins. During the gold rush, some people even searched through bird droppings hoping to find gold.
4. Duck Eyelids
Did you know that ducks have superior vision compared to dogs? Ducks can perceive full color, and thanks to the lateral positioning of their eyes, they can see nearly 360 degrees around them.
Ducks enjoy vision that is two to three times better than humans. While they struggle with night vision, their eyes contain cones that humans lack, enabling them to see ultraviolet light.
They also possess a rather unusual third eyelid. However, this isn’t as strange as it sounds. All birds have three eyelids. These “nictitating membranes” function like goggles underwater, enhancing the duck’s vision while they dive. Many other animals also feature this practical eyelid. If you take a close look, you’ll spot them on dogs as well.
3. A Grand Passage
A grand passage evokes images of grandeur and sophistication, something a wealthy duck might do before diving into a vault of gold coins. It doesn’t exactly resemble the eerie scenes from a horror film. (Think of Alfred Hitchcock’s The Birds—yes, events like that do happen.)
A grand passage takes place when a large flock of ducks goes into a frenzy. This typically follows unusual weather patterns—sometimes, a sudden cold front triggers the migration of millions of ducks at once. While this phenomenon occurs periodically, it always leaves people below these vast clouds of ducks startled and uneasy.
Occasionally, there are so many ducks that airports become gridlocked, with flights delayed until the massive flock clears. The sheer volume of ducks can even interfere with radar systems and block the sky.
A grand passage is a chilling spectacle, yet the ducks always manage to fly right over us humans. We’re fortunate that no fatalities from ducks have ever been recorded. At least, not yet.
2. Duck Vigilance
A duck is never caught off guard. They are constantly on alert, ever watchful. It’s unnerving. Predators struggle to sneak up on adult ducks, and hunters know that to have any chance, they must remain completely motionless and perfectly camouflaged while waiting for the right moment.
Ducks are known to sleep with one eye open. When resting in a group, they often line up in a row. The duck at the end of the line keeps an eye peeled for any potential threats.
A fascinating study from 1999 uncovered an intriguing aspect of ducks' sleep behavior. While one eye remains open, only half of the duck’s brain actually rests, while the other half stays alert. They can literally switch off half of their brain.
1. A Duck’s Cold, Unfeeling Foot
Ducks are like strange, bionic, terminator creatures. They have evolved incredibly specific bodily features to endure the harsh conditions of cold winter lakes and their icy aquatic lives.
We’re all familiar with a duck’s webbed feet, but did you know that ducks can control blood flow to their feet? When the temperature drops, less blood circulates to their extremities, allowing them to comfortably swim in freezing water and stand firm on ice.
During mating season, a duck's feet will turn bright red. It’s similar to a baboon’s red bottom. This color change indicates that the duck is pairing up, and both males and females will sport red feet until summer, when they’ll fade to a dull hue to blend in with their surroundings.
