Marshall, 1942 General act. Los Esermike (on slope) March 31st—am. Heard whiporwills, Otus trichopsis (3 or 4) Cryptoglanx (? see sp. act.) & Bulbo. An am. cdl. Chordeiles acutipennis soaring in tops of pines. Then as day breaking, heard some kind of birds in pine but couldn't get. Heard detems gularis chrysalus & Cisslopla flecks in canyons ~ not Enuagnatique. Myadestes common— 1 singing whenever less dense trees, usually on steep hills or in canyon bottoms—not in pine grove. Pseudechamus abundant in pines & asp. in few decid. trees there—singing & calling loudly; also— Sialia, Cyanecitta(3), detems wagleri (2), Drydrates (several heard), Colaptes (many), 2 pairs Enigdonax fulvifrons (in grass & brushes under pines); Setoplaga picta abundant in pines—singing, paired, Procinga flava (1) in pine. Many Heleodytes zonata in pines & brush, Troglodytes musculus & Thryothorus modestus, common in underbrush, meadowlarks Wilsonia brust, Opornis, Dendroica townsendi (pine). Lingophila? refrenens (common in brush), Myiodiames pertinus common in pines. Ravens, Butes also. Very certain that I heard Hylocicla ustulata flying n. just at dawn.