It is becoming more and more rare over there, mostly old people. It is a holdover from when South Korea was a dirt poor country.
We have a good friend from Vietnam who visits her relatives every year. She says the first thing that she notices every time she goes back is the complete lack of birds. Pretty much every bird that has the misfortune to visit is caught and eaten by the locals. Vietnam thanks to their fine “socialist” government is still basically dirt poor.
It is amazing how few people realize that when Japan left Korea the north was the prosperous (comparatively speaking) industrialized section. The south was agricultural and much less prosperous.