The Bulletin of the British Ornithologists' Club is an ornithological journal published by the British Ornithologists' Club (BOC). It is cited as Bull. B. O. C. Many descriptions of birds new to science have been published in the bulletin. The journal was first published in 1892. It is published in four quarterly issues. from March 2017 (Vol. 137 No. 1), it became an online-only, open access, journal, giving as the reasons for the change: Since 2004, the journal's honorary editor has been .