We see the migratory birds in September. I saw some birds for the first time.
To distinguish between male and female of common teal, I referred to the following website. https://www.nature-engineer.com/entry/2018/08/21/16
Month: October 2021
Panoramic view of Tokyo, Saitama, Mt. Tsukuba, , ,
Northern shoveler
A duck with a large beak.
It might be on the way of the crossing, and it is not seen after this. October 6, 2021, Oppe River, Kubo Weir.
Black kites
Author recorded the circling and descending flights of the black kites at the Katsuragi Kannon Observatory. There were times when I made mistakes in operating the equipment and failed to track them. 4 October 2021.