My birdwatching note in Yokohama, other parts of Japan, Bhutan, Thailand and Asia.
Cackling Goose: Larger number was seen in 19 December. They are the least common goose in Hachiro-gata and often participated in the other goose.
(Tundra) Bean Goose. The most common goose in Hachiro-gata. Probably, over 2,000 were seen during the two days trip.