Probably asking about the history of fancy radiator caps on cars, back in the old days. When did they start utilizing them?
https://www.jalopyjournal.com/forum/threads/ford-greyhound-hood-ornament.1222017/#post-13962439 Go to the above link and read the article, there are details on how the quail came about.
The link @Fordors provided is a gem. I love it when we get a post that gets to the heart of a topic so directly. Nicely done sir! John