>>530133328
After some quick research, I have come across this article.
>This proverb is believed to have originated hundreds of years ago in Japan. In ancient Japan, falcons were kept as pets and trained by people known as taka-amahiki, or "falcon masters.

>The hawk masters taught their birds that it was important to stay out of sight and mind their own business when they were not hunting or in danger. In other words, they taught their falcons to hide their talons - a metaphor that means they should hide their skills until they are needed.
Source:https://how-to-live.de/en/the-smart-falcon-and-his-claws-japanese-proverb/