Marshall, 1946 13. Sammelis Melospiza melodia Sept Sonoma Co. north Petaluma Creek. 14-22 (north-east of) Grandview (Black Point Station) on the east end of bridge of highway #37 across Petaluma Creek. Petaluma slough here has area of rich Salicornia & submerged 3 angled Scripus (low) & other saltgrass, Then a levee with much Baccharis gilularis. Song Sparrows forage, sing & spend time in Salicornia & occasionally come up to Baccharis when squeaked at. Very abundant. All in fresh fall plumage. 5-6 mi S Shellville, Sonoma Co noted on bay side of highway #37, vast rich tracts of Salicornia & Tules. Magillaris Contra Costa Co Tule & Bullrush marshes wide and appear continuous from 1 mile or so West of Martinez east all the way to Antioch, where they end abruptly, due to steep river banks at that point. West of Martinez, there is continuity with upland habitat on the wooded hills there with moist north-facing slopes which rise out of the marshes. Marshes especially extensive around Avon, where a tremendous population exists. Tried to collect in extensive tule area west of Antioch, but found it dry, & SS absent (head along sloughs only). Mallard slough 2 1/2 mi W Pittsburg drove toward bay from highway #4-24 to a water company pumping station.