This is a large data table of Grinnell's observation of bird-fauna during a particular period discussed on the previous page. Because of the unique nature of this page, I decided not to try typing it out without consulting about the best means to do so.
Note the Sierra Junco. I believe that he used the term about 10 pages back where it was listed as an unknown. A quick google search turned up several hits including a 1919 paper. It appears to be an older name but I'm not sure of the Latin name.