Which species is this?
This bird appeared to be only slightly smaller than the turkey vulture that was circling the same area.
Unfortunately, the photos aren't very good. Maybe a female hooded merganser?
Gulls on top of a houseboat in Mission Bay
This small, gray hawk-like bird was perched on a wire by the Bay Bridge Toll Plaza today. When it took off, I noticed that its wings were white underneath. My best guess is that it's a Cooper's hawk. The size and the markings on its beak seem to match.