Date: 12/11/25 7:10 am From: joel.herr via groups.io <emupilot...> Subject: [EBB-Sightings] Wayward geese of Mount Diablo
Central Contra Costa County has had unusually extensive Tule Fog the last couple weeks which has brought many flocks of geese from the Central Valley who wander above the fog. While most of the honking sounded like Greater White-fronted, I have recently managed to get visuals on flocks above the west side of Mount Diablo by getting above the fog or having it start to clear at the right time. About 3/4 of the geese are Greater White-fronted, and the rest are Snow Geese. Flocks are dominated by one species but often have the other mixed in. None of the geese I have seen above the fog have been Canadas or Cacklings, and none of the Snow Geese I have seen were noticeably smaller to be putative Ross's Geese.
