Mayhew 1949 Mallard 14. June 23 Conaway Ranch, 2 miles east of Woodland, Yolo Co., Calif. had 4 eggs by the harvester I was riding. The nest was undamaged. 30 another ♀ was flushed from a nest with 5 eggs that were nearly ready to hatch. This nest was also undamaged. It was about 40 yards SW of (29). 31 a ♀ was flushed from this nest that contained 6 eggs. It was undamaged. 32 a ♀ was flushed from a nest with 5 eggs in it. The nest was undamaged. June 25 (31) 6 eggs still in nest, but ♀ hadn't returned — eggs very hot from the sun. Embryos had just begun development. (30) 5 eggs still in nest, but one was cracked. Young almost ready to hatch when the nest was uncovered. Eggs were covered with a layer of down. (29) All the eggs had been eaten by some animal. The nest was still intact. (32) Still 5 eggs in the nest, but ♀ had failed to return. Embryos about ⅓ through development. (7) This nest has been destroyed by cattle tramping on it. June 26 Eggs eaten, nest destroyed. Some egg (26) shells 3 feet from the nest site. (24) all but 1 egg eaten — it was covered over with down, so might have escaped detection. (25) The ♀ flushed from the nest at my