I did a little birding on a layover at Incheon Airport in March 2018. Walked the Central Park in Seoul for an hour in the afternoon and saw these, all lifers for me (the magpie looked like our Black-billed, but is actually a different species called Eurasian).
South Korea doesn't have much by way of endemics but does have a respectable bird list including a lot of winter visitors.
South Korea doesn't have much by way of endemics but does have a respectable bird list including a lot of winter visitors.