In the English language, many animals have different names depending on whether they are male, female, young, domesticated, or in groups.
The best-known source of many English words used for collective groupings of animals is The Book of Saint Albans, an essay on hunting published in 1486 and attributed to Juliana Berners.
Merriam-Webster writes that most terms of venery fell out of use in the 16th century, including a "murder" for crows.
It concludes that for lexicographers, many of these do not satisfy criteria for entry by being "used consistently in running prose" without meriting explanation.
When he interviewed scientists who specialize in studying specific animals, they had not heard of these terms, such as a "bask" of crocodiles or "wisdom" of wombats, being applied in their fields.