E. Aldrich 1938 27 - Black-chinned Sparrow (3 heard singing & one collected on side-hill [photo # 284] of Cedar Canyon. Artemisia tridentata seems almost to be requisite for this species) - Barned Owl (Flushed one from cliffs in canyon near reddish butte. Investigated all suitable ledges without finding nest. After 5 hr. owl again seen flying farther up canyon.) May 30, 1938. In AM drove with Grinnell & Johnson to Seafair Valley, purdy, Ivanpah, to main highway & stayed part of afternoon at Mescal Springs where took list of birds. Returned by way of Cima. Spent some time helping to plot lower limit of Pinon-Juniper on surrounding Mt. ranges. Foot for Mescal Canyon: - Desert Sparrow (seen carrying nesting material) - Green-t. Towhee (one seen in brushy stream bottom) - Warbling Vireo (one shot - not singing) - Warbling Vireo Black-headed Grosbeak (one & seen) - Linnnet (nearly everywhere & apparently nesting in potholes in cliffs - seen carrying food) - Costa Hummingbird (several seen feeding on red & purple pentatoman, power diving) - Western Snatcher (3 pairs seen & heard giving notes, not singing)