We investigated general trends of bird study in the Korean Journal of Ornithology (KJO) by organizing and analyzing papers published from 1994 to 2013 according to species, family, order, subject, and study site. To date, a total of 13 orders, 47 families, and 149 species (including unrecorded species) were studied, and the order Passeriformes was the most represented (33.6%). Of the recorded species in Korea, research on only 18.7% of species has been published in KJO. The current state of populations was the most commonly studied subject (49.6%), and the least common subject was taxonomy (4.7%). Furthermore, of the nine administrative districts, bird studies were mainly performed in the province of Jeollanam-Do (20.2%), and few studies were conducted in the province of Jeollabuk-Do (4.1%). Studies of the family Ardeidae were mainly performed in five provinces (Kyungki, Chungnam, Chungbuk, Jeonnam, and Kyungbuk). On the basis of this analysis, we suggest that more research needs to be focused on poorly studied species, subjects, and places.