Red-tailed Tropicbird Phaethon rubricauda
Common around Volcano Is and Minami-torishima (E Bonin Is). Uncommon around Nakano-ugan-shima; Okinawa Pref, and Bonin Is in summer. Also several records from Honshu, Shikoku and Kyushu after typhoon passed.
Breeding sites are confirmed on Volcano Is; Kita-Iwo-jima, Minami-Iwo-jima, and E Bonin Is; Minami-torishima.