White stork
Cultural associations
In Slavic mythology and religion, storks were thought to carry unborn souls from Vyraj to Earth in spring and summer. This belief still persists in the modern folk culture of many Slavic countries, in the simplified child story that "storks bring children into the world". Storks were seen by Early Slavs as bringing luck, and killing one would bring misfortune. A long-term study that showed a spurious correlation between the numbers of stork nests and human births is widely used in the teaching of basic statistics as an example to highlight that correlation does not necessarily indicate causation. The child-bringing myth has appeared in different forms in history. Children of African American slaves were sometimes told that white babies were brought by storks, while black babies were born from buzzard eggs.
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