Fork-tailed Storm-Petrel Home > Seabirds JP > Stormies (Japan) > Fork-tailed Storm-Petrel Fork-tailed Storm-Petrel Hydrobates furcata Common around Hokkaido and NE Honshu. Population increase in summer, but sometimes seen E Honshu in winter. Fig. 1. Fig. 2. Same bird as Fig. 1. Fig. 3. Same bird as Fig. 1. Fig. 4. Fig. 5. Foraging with Northern Fulmars. Fig. 6. Foraging with Northern Fulmars. Fig. 7. Off Esan, Hokkaido. 16 May 2020.