Today,

Cliff Swallow and Bank Swallow were grouped with all of the Tree Swallows
perched over the water this AM (about 7:30 am).  I had initially ID'ed the
Cliff Swallow as the elusive California Surfer Swallow due to the white
patch above the beak.  But . . . According to Sibley . . . . well . . . he
feels that no such bird as the "California Surfer Swallow" actually exists.
Yea right . . . what does he know anyways.

If anyone wants to take up a petition to rename this species, I'll sign.