Mayhew 1949 Mallard 10. June 15 Conaway Ranch, 2 miles east of Woodland, Yolo Co., Calif. no down except for about a dozen feathers. The stubble was about 1 foot high around it. The next trip around the field, the harvester nearly completely covered the nest with barley straw. One old nest was found from which the young had hatched & left the nest. There was no evidence of unhatched eggs. One egg was found lying in the open on the ground. There was no evidence of a nest near-by. Another old nest was found with 1 youngster dead just emerging from the egg. The rest of the young had left the nest. One dead ♀ was found. She had been partly eaten. As she had been dead for some time, there was no way of telling what had happened. There was no evidence of a nest near-by. June 18 This nest had disappeared — I could find ⑯ no trace of it. Either someone moved the stake or removed the nest entirely. ⑫ This nest still had 6 eggs, but it appeared that no duck had returned to it since the barley was harvested. I opened one egg, but could find no embryo. The egg appeared to be fairly fresh yet, however. ⑰ a nest with 9 eggs & proper down. The eggs were warm, so the ♀ must have