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South Polar Skua Stercorarius maccormicki

Migration visitor. Common around E and S Hokkaido, E Honshu, and Izu Is in spring and autumn. Also rare? seen Sea of Okhotsk.

Fig. 1.
Fig. 2. Same bird as Fig. 1.
Fig. 3. Worn Juvenile.
Fig. 4. Worn Juvenile. Same bird as Fig. 3.
Fig. 5. Worn Juvenile. Same bird as Fig. 3.
Fig. 6. Worn Juvenile. Same bird as Fig. 3.
Fig. 7. Worn Juvenile?
Fig. 8. 1st-year?
Fig. 9. 1st-year? Same bird as Fig. 8.
Fig. 10. 2nd-year or later.
Fig. 11. Adult?
Fig. 12. Adult? Same bird as Fig. 11.