Marshall, 1946 Melospiza melodia Sept Magillaris, Contra Costa Co, 2 1/2 mi W Pittsburg, (Calif.) From here north ran a levee covered with Baccharis pilularis & extensive Rose thickets. On sides of levee were tracts of Typha, some rich Salicornia, a few willows, and tracts of Scirpus californicus? Song sparrows avoided Salicornia and Rose Thickets which (latter) appear too dense & dark. Were abundant in Typha & Scirpus. Some juveniles seen. Magillaris appears to differ markedly from pusillula & sarmelis in that it does not forage in Salicornia but stays in the Tulles & [Grimdelia] as at Southampton even tho these bordered by extensive areas of Salicornia. Solano Co, Cordelia Slough. Collected on Cordelia Slough at a point where it comes within 100 yds of highway 21, about 9 mi N Benicia. Here was an extensive tidal growth & 3-angled Scirpus with no home for low [illegible] Song Sparrows then a slough bordered by Scirpus californicus & Typha with occasional tall weeds, rose & poison oak thickets. S.S. restricted to Typha & Scirpus when abundant. Many juveniles and partly molted birds seen and collected. Ran into whole (family?) group groups of juveniles. Some molting birds have grey cast apparently from fragmenting follicles.