Pacific Loon

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Gavia pacifica

Japanese name: シロエリオオハム Shiroeri-O-hamu

Common (mainly winter visitor) around Hokkaido, Honshu, Shikoku and Kyushu.
Perhaps the largest number of population of Loons/Divers in Japan.

Fig. 1. Adult summer.

Fig. 2. Adult summer.

Fig. 3. Adult summer. Same bird as Fig. 2.

Fig. 4. Adult summer. Same bird as Fig. 2.

Fig. 5. Presumed 1st winter.

Fig. 6. Juvenile.

Fig. 7. Off Sendai, Miyagi Pref. 22 Jan 2023.

Fig. 8. Migration birds.

Fig. 9. Off Sendai, Miyagi Pref. 20 Jan. 2024.

Fig. 10. Off Sendai, Miyagi Pref. 24 Jan. 2025.

Fig. 11. Off Sendai, Miyagi Pref. 23 Feb. 2025.

Fig. 12. off Sendai, Miyagi. 22nd Jan 2023.

Fig. 13. Feeding flocks.

Fig. 14. Feeding flocks. off Sendai, Miyagi. 22nd Jan 2023.