Birdorable Bee Hummingbird

The Bee Hummingbird is the smallest bird in the world

Birds are everywhere — from your backyard to the deepest jungles and highest mountains. Whether you're a casual birdwatcher or a hardcore birder, there’s always something new to learn about these fascinating creatures. Here are ten fun and surprising bird facts that are perfect for sharing with friends.

Birds Are Living Dinosaurs

It’s true! Birds evolved from small feathered dinosaurs, and they’re the only living descendants of this ancient group. If you’ve ever thought a chicken looked a bit like a tiny T. rex, you’re not wrong.

The Bee Hummingbird Is the World’s Smallest Bird

Found in Cuba, the Bee Hummingbird is about the size of a large insect. It measures just over 2 inches long and weighs less than a penny. Despite its size, it can beat its wings up to 80 times per second. 

Pigeons Can Recognize Themselves in Mirrors

While most animals don’t pass the mirror test for self-recognition, pigeons can. They’ve also been trained to distinguish between different styles of art and even detect cancer in medical images. Not bad for city birds!

Owls Can’t Move Their Eyes — But They Can Rotate Their Heads

Owls’ eyes are fixed in their sockets, so to look around, they turn their entire head. They can rotate it up to 270 degrees without damaging blood vessels or cutting off circulation.

Great Horned Owl close-up photo

Flamingos Are Not Naturally Pink

The familiar pink color in flamingos comes from their diet of shrimp and algae rich in carotenoids. In zoos, if their diet lacks these pigments, they can turn pale or even white.

The Arctic Tern Migrates Farther Than Any Other Bird

Arctic Terns migrate from the Arctic to the Antarctic and back each year, covering over 50,000 miles annually. That’s more than one and a half trips around the Earth.

The American Woodcock Has the Slowest Recorded Bird Flight

Also called the "Timberdoodle," the American Woodcock holds the title for the slowest flying bird. During its courtship display, the male woodcock performs a slow, fluttering flight at speeds of about 5 MPH, making it the slowest recorded flight among birds.

The Hoatzin Has a Digestive System Like a Cow

This South American bird eats leaves and ferments them in a special stomach chamber, similar to how cows digest their food. The process gives the Hoatzin a distinctive, slightly funky smell—earning it the nickname “stinkbird.”

Photo of a Hoatzin

The Hoatzin, South America’s funky “stinkbird.”

Lyrebirds Can Mimic Chainsaws and Camera Shutters

Native to Australia, Lyrebirds are incredible mimics. In the wild, they’ve been recorded copying sounds like camera shutters, car alarms, and even chainsaws—making them some of the best impressionists in the animal kingdom.

Killdeer Fake Injuries to Protect Their Nests

If a predator comes too close, a Killdeer may pretend to have a broken wing, flopping around dramatically to lure the threat away from its nest. Once the danger is gone, it quickly flies off—completely unharmed.

Birds are endlessly interesting, and these fun facts only scratch the surface. Whether it’s their incredible migrations, quirky behaviors, or surprising intelligence, birds have a lot going on — and it’s no wonder they fascinate people all over the world.

Bird poop might not be the first thing that comes to mind when you think about fascinating bird facts, but it’s actually full of surprises. From why it looks the way it does to how it helps scientists learn more about bird behavior, bird droppings have a lot to say. 

One of the most obvious features of bird waste is its color. Most of it is white. Birds excrete nitrogenous waste in the form of uric acid, not urea like mammals. Uric acid is pasty and white, and it's expelled along with fecal matter in one go. The darker part you see in the dropping is the feces, while the white part is uric acid (like urine). This combination comes out of a single opening called the cloaca, which handles both digestion and reproduction. So while bird waste contains both poop and pee, for the rest of this post we'll refer to this waste simply as poop.

Pooping Peregrine Falcon by RussellHarryLee [CC BY 2.0]

Another curious thing about bird poop is how often birds go. Birds don’t have bladders, and they don’t store waste for long. This is an adaptation for flight—carrying extra weight isn’t ideal when you need to stay airborne. So instead of holding onto waste, birds eliminate it frequently. Smaller birds with faster metabolisms poop more often than larger ones. A little songbird might go every 10 to 20 minutes, while larger birds like hawks or pigeons have slightly longer intervals.

Bird poop also has real-world applications, especially in science. Ornithologists can analyze droppings to learn about a bird’s diet, health, and even where it's been. Traces of insects, seeds, and other food sources can be found in poop samples, giving clues to a bird’s foraging habits. Some researchers use poop to study migratory patterns, testing for isotopes that reveal where the bird has traveled. Bird droppings can also be analyzed for pollutants like pesticides or heavy metals, offering a glimpse into environmental health. This is useful when caring for individual birds, as in rehabilitation, pet birds, and aviaries, as well as surveying the health of wild bird populations. 

Black Vulture with white-streaked legs by cuatrok77 [CC BY-SA 2.0]

Some vultures have a unique way of using their waste to stay cool! They poop on their legs. This behavior is called urohidrosis. When a vulture defecates on its legs, the liquid waste evaporates and helps lower the bird’s body temperature, similar to how sweating works in humans. The uric acid in the waste also has a bleaching effect, which is why some vultures have white-streaked legs. It’s not the most glamorous cooling system, but it’s effective, especially in the hot, arid environments where many vultures live.

While most of us see bird poop as a nuisance—especially if it ends up on a car or outdoor furniture—it plays an important ecological role. Guano, the accumulated droppings of seabirds (or bats), is an extremely rich natural fertilizer. It’s high in nitrogen, phosphate, and potassium, which are essential nutrients for plant growth. In some places, guano harvesting has been a major industry. Coastal islands where seabirds nest can develop thick layers of guano over centuries, supporting agriculture far from the ocean. Guano of seabirds has been used as an agricultural fertilizer for over a thousand years! Guano of birds like the Brown Pelican, Peruvian Booby, and Guanay Cormorant (with a name taken from the Spanish word for guano!) has been used for agriculture in South America.

So, while bird poop might seem like nothing more than an annoyance, it’s actually a product of evolutionary efficiency and even scientific utility. It reveals insights into a bird’s biology, environment, and behavior. And yes, it’s still annoying when it hits your windshield—but at least now you know what makes it so interesting.

In many bird species, all the eggs in a nest hatch around the same time. But in others, chicks emerge over a period of several days. This is called asynchronous hatching. It happens when a parent bird starts incubating the eggs right after the first one is laid, instead of waiting until the full clutch is complete. As a result, the first egg gets a head start in development, and each following egg is a little bit behind.

This hatching pattern is common in birds of prey, waterbirds like cormorants and Anhingas, as well as some herons, songbirds, and others.

One main reason for asynchronous hatching is to deal with uncertain food supplies. When food is plentiful, all chicks may survive, even the youngest and smallest. But if food becomes scarce, the oldest chick—being stronger and more developed—has the best chance of survival. In harsh times, the younger chicks may not make it. While this sounds harsh, it’s a natural strategy that increases the odds of at least one chick surviving in poor conditions.

In nests where asynchronous hatching occurs, one can often see clear size differences between the chicks. The older chicks often dominate when it comes to feeding time, especially when the parents bring limited food. The younger siblings sometimes get enough to survive, but in tough seasons, they may be out-competed and end up not receiving enough food to survive. This natural pecking order reduces the parents' burden and aligns survival with food availability.

Blue-footed Booby chicks, who hatched asynchronously, by Dan [CC BY-SA 2.0]

Some scientists believe asynchronous hatching can also help reduce sibling rivalry in the long term. The oldest chick is so far ahead in development that the others don’t compete on equal terms, so instead of all fighting each other constantly, a clear hierarchy is formed. This can mean less energy spent on aggressive interactions in the nest.

Another theory is that parents use this method as a kind of insurance policy. If something happens to the older chick—like illness or predation—the younger survivors may still survive as "backup" offspring. While they have lower chances of survival, they still offer potential for the parents to pass on their genes if conditions shift.

Some birds, like the Macaroni Penguin, have a different take on asynchronous hatching. The first laid egg is typically around only 60% of the size of the second of two eggs. The first egg is unlikely to survive in these nests, and some mother birds have been observed removing the first egg from the nest upon successfully laying the second, larger egg. 

Other birds, like the Loggerhead Shrike, will start incubating the clutch when the second-to-last egg is laid, resulting in a lopsided asynchronous hatching situation for the final chick.

This nesting strategy isn’t without risks. If the gap between hatching times is too large, the youngest chicks may be too far behind to survive, even in good conditions. 

Asynchronous hatching is a fascinating survival strategy in the bird world. It reflects the incredible adaptability of birds in the face of environmental challenges. By staggering hatch times by simply adjusting the start of incubation, parent birds improve the chances that at least one chick will thrive, even if conditions change quickly.

Great Horned Owl chicks by Kameron Perensovich [CC BY-SA 2.0]