[EBB Sightings] Mostly white & gray hummingbird in Oakland

I am forwarding this message for Janet Gawthrop, who is not subscribed 
to this list.  The bird was seen at the intersection of Monte Vista and 
Harrison - not far from the Morcom Rose Garden.   Kay Loughman, Berkeley.

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Hi,

I don't know if you have enough time to track oddities, but yesterday 
(July 5) I saw a hummingbird across the street from my apartment which 
had white sides, and a throat and breast that were mostly white.  When I 
looked at it through binoculars, I could see faint, tan streaks on the 
throat just below the bill, and a few tan streaks on the breast.  I got 
views of it facing me and in profile as it flew to different branches in 
the tree.  When I saw it in profile, the top of the head, back, and most 
of the wings looked grayish, but it was a foggy day so color was not 
easy to distinguish.   There was a whitish patch where the wings fold, 
but the rest of the wings looked grayish. The bird's eye and bill were 
black, and the legs and feet also were a grayish/tannish color, as near 
as I could tell.

The bird was mostly silent, so I could not tell you what species it was. 
  I saw it chased by one of the resident Anna's hummingbirds, so I don't 
know if it will be back.  I'll definitely keep you posted if I see it again.

Has anyone else reported a mostly white hummingbird this year?

Janet Gawthrop