Mayhew 1953 June 14 Mallard Conaway Ranch, 2 mi. east of Woodland, Yolo Co., Calif. week old. Two broods were about 2 weeks old, & one brood was about 6 weeks old. The number of young could not be accurately counted in all cases, but usually a close estimate could be given. However, in 3 cases, not even an estimate was possible. A summary of the results is as follows: Brood No. % parent No. young age (weeks) Where found 1 yes ~6 1 small ditch 2 yes 8 1 small ditch 3 yes 9 1 rice field 4 yes 3 1 small ditch 5 yes 6 1 small ditch 6 yes 9 2 rice field 7 yes ~5 1 rice field 8 no 1 1 rice field 9 no 2 2 small ditch 10 yes ? 1 rice field 11 yes 9 1 small ditch 12 yes ~5 1 small ditch 13 yes ~5 1 small ditch 14 yes ~4 1 small ditch 15 yes ~3 1 main canal 16 yes ? 1 small ditch 17 yes ? 1 small ditch 18 yes 2 1 main canal 19 yes 10 1 small ditch 20 yes 6 1 small ditch 21 no 1 1 small ditch 22 yes 5 1 small ditch