Marshall, 1947 Melopiza July 9 Dickey Collection I ran over the Walnut Creek road through Concord & within half a mile of Port Costa Contra Costa Co., on the marshes of 'south Suisun Bay. Here we camped in a shed used as a shelter for horses, on the edge of the willow thicket bordering a small creek. Within [illegible] 500' is a tule marsh covering about six acres, & bordered by dense weeds. - in tules--more song sparrows than I have ever seen in one place before. Sept 22 -- started out at 7:15 & back at 8:30 with 15 song sparrows. These feed in the tall weeds & when disturbed, seek the nearby tules. 55- 6486 - 6511." "A barn owl came out of the willows before sundown & was diving about among the weeds at a great rate. Sept 24 - we broke camp at 2 PM going back thru Concord & up Walnut creek, where we made a light camp." Note: On catalogue file - Dickey has "2 mi NW Concord". Van Boren says Huey showed Dickey the place on the topo sheet.