Mila | Red-necked Phalaropes at Sutro Baths @george94122 | Uploaded September 2024 | Updated October 2024, 2 hours ago.
Tiny shore birds that are at home on the open ocean. They breed in Arctic and then migrate to tropics.
Notice also interesting surface waves they generate while swimming and skypools on surface waves https://epod.usra.edu/blog/2022/03/skypools-on-surface-waves.html