Yongchang Jang is a Korean Institute Certified Public Accountant, yoga instructor, and a birder.
He is interested in Nonviolent Communication and the Work of Byron Katie.
He is a member of (contributor to): Korean Federation for Environmental Movement ; Jeju Wildlife Research Center ; Wetlands and Birds Korea ; Korean Wild Birds Society ; and Coalition of Jeju NGO
He writes bird news for bird forum
For Wikipedia, he wrote articles of Gwangpo Bay, Plan for Tidal Power Plant in Garorim Bay, and Gotjawal Forest
And he uploaded images of White-backed Woodpecker, Gloydius ussuriensis, and Pygmy Woodpecker.
His email address is: yongchangjang@hotmail.com