Marshall, 1947 Melopiza Oct 18 Green Valley Creek, Cordelia & Vicinity, Solano, Calif. Upstream from the last specimen coll. at arrows on map, preceding page, there were no more birds except the pair at the cesspool at highway where a little standing pool water. Went with Stones 4 1/2 mi upstream from Cordelia to the Green Valley public picnic ground. Creek has been dry all the way for several months - has water now from rain only couple days ago. Still no birds in the picnic area & bog scent area where I have coll. summer birds previously, and where Stones has found 6 pairs, & collected eggs. Stream dries up every year, i.e. birds must move out in late summers to return when if at all? Unlikely that must be recognized every spring. Same birds must return. Saw good song sparrow habitat in this area - low open willow patches, blackberry, Polygonum patches, etc. Coll. a Chestnut-backed Chickadee from a flock in willows, also 2 Creepers from tall straight-trunked oaks. Saw Steller Jays, Hairy Woodpeckers (also Downy & Nuttall), Juncos, Siskins, etc.