Northern Red Bishop, Euplectes franciscanus
These birds, formerly known as Orange Bishops, are native to sub-Saharan Africa; they are popular
pets, and as escapees they have established small wild breeding populations from Southern California
north through the Bay Area. They aren't yet recognized as a North American wild bird species, but
may be some day. They are in the family of the weavers, Ploceidae, and related to the old world
sparrows (Passeridae) and weaver-finches (Estrildidae). The male, shown in October, will shortly
lose its spectacular breeding plumage and resemble the Grasshopper-sparrow-like female. The photo
above is one of only two I have found on the web showing a pair of this species.