Remsen, J.V. 1974 Black-chinned Sparrow Spizella atrogularis May 4 Mt. Diablo St. Park, Contra Costa Co., Calif.: 5 ♂ - more common than in past years May 5 Mt. Diablo St. Park: 0 - same spots as yesterday were searched specifically for this species, but none seen or heard. All other species which were found yesterday were also seen in nearly same numbers today, except this species. May 13 Arrastre Creek, San Bernardino Co., Calif.: 4 - pinyon-juniper Tip Top Mtn., San Bernardino Co.: 2 June 15 San Gabriel Mtns., Los Angeles Co., Calif.: 3 h.a. (S)