Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Birds

Common cuckoos are medium-size birds typically found in Europe, Asia and Africa.

Rare, Out-of-Place Cuckoo Sends Birders Flocking to Long Island in Hopes of a Once-in-a-Lifetime Sighting

The common cuckoo spends most of the year in Europe and Asia but migrates to Africa for the winter

Horseshoe crabs evolved 445 million years ago and have been around for 1,500 times longer than Homo sapiens. It was not until the 20th century, however, that scientists discovered life-saving properties in their blood.

Horseshoe Crab Blood Has Long Helped Us Make Safe Medicines. Now, Alternatives That Spare the Ancient Creatures Might Be Breaking Through

An enzyme in the blue blood has been key to testing vaccines since the 1980s, raising concerns for the crabs’ population. But regulatory approval and new data are signaling the tide may be turning

None

There's More to That

Birds, Bats and Bugs: The Teeming World Above Our Heads

Researchers are finally able to catch a glimpse of the life filling the skies, and they want to protect it

A male and female olive baboon

Research Sheds Light on Why Women Live Longer Than Men—and Why This Pattern Will Likely Continue

Scientists studied hundreds of mammal and bird species to shed light on sex-based lifespan differences

Researchers equipped the bats with "backpacks" filled with monitoring instruments.

This Chilling Recording Reveals Large Bats Catching, Killing and Eating Birds Midflight

The data answers an enduring question about the greater noctule bat

A close-up of a gum leaf skeletonizer caterpillar, also known as a "Mad Hatterpillar" because of its distinctive stacked head capsules, left behind with every molt. The photo won the invertebrate behavior category.

See 15 Wondrous Winning Images From the 2025 Wildlife Photographer of the Year Awards

The eye-catching wildlife photos highlight both the beauty and the harsh realities of nature

A superb fairy-wren calls to a Horsfield's bronze-cuckoo. Brood parasites like cuckoos lay eggs in other birds' nests and leave them behind for the host birds to raise.

Birds Make an Alarm Call That Spans Species and Continents—and May Offer Insight Into the Evolution of Human Language

More than 20 species make a nearly identical noise to warn nearby birds of brood parasites, a behavior that bridges the “sharp division between animal communication systems and human language”

Generations of bearded vultures return to the same nesting sites for centuries, offering archaeologists a glimpse into the past.

Generations of Bearded Vultures Stashed Humans’ Treasures, Including a 650-Year-Old Sandal, in These Bird Nests

Researchers recovered more than 200 human artifacts from historical nests in southern Spain

A European stonechat with an orange-and-black-patterned Glanville fritillary butterfly in its beak

New Research

To Hide From Predators, Some Animals Camouflage Into Their Surroundings, While Others Display Bright Colors as a Warning. What Keeps Them Safest?

While many circumstances factor into the calculation, researchers found in a new study that local predators, not appearance alone, had the greatest impact on a color strategy’s success

Scientists scavenge the docks of Manhattan’s Hudson River Park in pursuit of boluses—masses of undigestible materials expelled by gulls.

Gulls’ Spit-Up Gunk Can Help Ecologists Understand Human Pollution

Researchers and student volunteers pick up what seabirds throw up, then examine it for clues about our impact on the environment

A male blue jay on the left, a female green jay on the right and a hybrid offspring of the two species in the center.

Strange Bird Spotted in a Texas Backyard Is the First Known Hybrid Between a Blue Jay and a Green Jay

The ranges of the two parent bird species have expanded due to climate change and now overlap around San Antonio, researchers say

A Brandt's cormorant carries red grape algae and seagrass in La Jolla, California.

See 15 Breathtaking Bird Images From the 16th Annual Audubon Photography Awards

This year’s competition expanded to Chile and Colombia and introduced new prizes focused on migratory species, habitats and conservation

Many different types of animals, from birds to orcas, are affected by human noise.

Five Dramatic Ways Animals Respond to Human Noise, From Mimicking Car Alarms While Wooing Mates to Calling Higher Over the Din of Traffic

As human-caused sound gets louder around the world, some animals change their behavior and many creatures suffer health issues

An artist's interpretation of what early penguins in New Zealand might have looked like

Early Penguins Had Long, Dagger-Like Beaks for Skewering Fish, New Zealand Fossils Reveal

Paleontologists describe four new species of extinct ancestral penguins that help shed light on how the iconic birds evolved after dinosaurs went extinct

Dustin Partridge of the New York City Bird Alliance looks for migrating birds during the 2024 Tribute in Light in New York City.

The New Science of Aeroecology Reveals So Much About the Amazing Creatures That Populate the Skies and How Humans Can Ensure Their Survival

The sky above us is a complex ecosystem, just like the land and sea. A new field of research is bringing a fresh understanding of the birds, bugs and other species that live there

Greater flamingos are abundant in the Camargue, a coastal region in southern France.

Migratory Flamingos Age Differently From Resident Ones, Offering a New Clue About Getting Old

A new study of the pink birds in France finds that aging sets in later for flamingos that migrate, though they face higher mortality in early adulthood

The American robin was among the birds most affected by light pollution.

Light Pollution Is Making Days Longer for Birds, Extending the Hours When They’ll Sing

A new study looked at millions of recordings of birdsong and found that some species in areas with more light pollution are active for almost an hour longer than average

Scientists find that streaked shearwaters poop every four to ten minutes in flight—a strict schedule that doesn't apply when they're sitting on the water's surface.

Video Footage Accidentally Reveals the Strange Pooping Behavior of These Large Seabirds

Researchers set out to investigate how streaked shearwaters take off and instead were surprised to discover that the birds poop very frequently and regularly, which could play a role in marine ecology

Researchers dissected nearly 500 post-mortem birds from five Australian species, including the rainbow lorikeet (species pictured above).

Sex Reversal Is More Common in Birds Than Previously Thought, Suggests Study of Australian Species

Researchers find that about 5 percent of birds studied have a mismatch between genetic and physical sex—including one male bird that seems to have laid an egg

Gouldian finches, endemic to northern Australia, are among the tropical birds that may be vulnerable to extreme heat.

Tropical Birds Are Struggling to Cope With Extreme Heat, Research Suggests

A first-of-its-kind data analysis links high temperatures caused by climate change to tropical bird population declines

Page 4 of 56