Mayhew 1949 Journal 22. June 21 Conaway Ranch, 2 miles east of Woodland, Yolo Co., Calif. We covered 32 acres of barley with the harvester today. A total of 4 Mallard nests were found today, none of which were damaged by the harvester. There was a total of 25 eggs in the mallard nests found today. June 23 Today the harvester covered another 32 acres. I found 4 mallard nests + 2 pheasant nests, with a total of 20 mallard eggs + 18 pheasant eggs. None of the nests were destroyed by the harvester. June 25 Today I went around to see what had occurred at the nests uncovered by the harvester. Beef cattle are now pasturing on the grain stubble, & they had trampled 1 nest. The remainder that I checked today had been deserted, either because the % couldn't find the nest again, because there was not sufficient cover around the nest, or because the disturbance created by the harvester had frightened them all away. July 9 Today John Earl & I covered most of the ranch looking for mallards. However, while he was with me, we found only 1, a f. After he left I found 2 more f + 1 or - 1 of the f was flushed from a nest. Neither of us can explain the apparent extreme scarcity of these ducks at this time. July 10 Today I found a pied-billed grebe nest in the permanent ditch about 1/2 mile west of the ranch headquarters. The