With their long legs, dagger-like beaks, and larger-than-life folklore, storks are some of the most recognizable birds on the planet. But behind the "stork brings the baby" legend is a genuinely fascinating animal built for endurance flight and lifelong nest-building.
Here are 19 fact-checked facts about storks, covering their biology, behavior, migration, and the cultural myths that made them famous.
The stork family, Ciconiidae, includes about 19 to 20 living species, grouped into six genera; the white stork is the best known.
Storks are found on every continent except Antarctica, but only one species, the wood stork, lives in North America.
Storks have long, thin legs adapted for wading through shallow water while hunting.
A stork's long, pointed beak is used to spear or grab fish, frogs, and other small prey.
The folk tale that storks deliver babies in a bundle carried by their beaks is just a legend, not a real behavior.
Storks are largely monogamous during the breeding season, and many pairs return to reunite at the same nest site year after year.
Female storks typically lay two to five eggs per clutch, depending on the species.
Storks perform elaborate courtship displays, including bill-clattering, since adults lack a voice box (syrinx) and cannot sing or call like most birds.
Chicks hatch covered in white down and are cared for by both parents.
The white stork migrates over 6,000 miles (about 10,000 km) one-way between its European breeding grounds and wintering areas in sub-Saharan Africa.
Storks rely on rising columns of warm air called thermals to soar long distances with minimal effort, which is why many species avoid long sea crossings and funnel through narrow land routes like the Strait of Gibraltar.
Many stork species nest in colonies, though white storks often build solitary nests on rooftops, poles, and chimneys.
Storks build large stick nests and frequently reuse and add to the same nest for many years, sometimes until it weighs hundreds of pounds.
White storks can live around 20 years in the wild, and some banded individuals have lived considerably longer.
Storks are considered good luck or sacred in many cultures, and the belief that storks deliver babies is especially popular in Germany and the Netherlands.
Storks eat a varied diet of fish, frogs, insects, small rodents, reptiles, and occasionally other birds' eggs or chicks.
Several stork species, including the storm's stork and the oriental stork, are threatened or endangered due to habitat loss, wetland drainage, and hunting.
Storks have appeared in art and heraldry for centuries, often as symbols of fidelity, fertility, and good fortune.
Storks lack a true singing voice, so bill-clattering doubles as their main way of communicating with mates and rivals at the nest.
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