Mallard notes, v4295
Page 349
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Mayhew 1953 Mallard 46. June 4 Conaway Ranch, 2 mi. east of Woodland, Yolo Co., Calif. Brood No. ♀ present No. young age (weeks) Where found 23 yes ~10 1 rice field 24 yes ~9 1 rice field 25 yes ~7 1 rice field 26 yes ~8 1 rice field 27 yes 11 1 rice field 28 yes 8 1 rice field 29 yes 5 6 main canal 30 yes 1 1 main canal 31 yes 11 1 small ditch 32 yes 6 1 small ditch The rice is about 6 inches high in the fields that are being used by the mallards. The broods can be seen in the rice checks when one stands on top of the big levee & looks down onto the fields. Otherwise, however, the birds are well hidden. In addition to these broods, the following mallards were also seen: 7 females without drake or brood, 88 drakes by themselves, + 35 pairs of birds. In 14 cases, the young were accompanied by both parents. It appears that there are approximately as many birds present on the ranch as there were in 1950. So for the broods average approximately 6 birds per brood. June 7 Today was spent looking for more broods. As before, there are quite a few birds still paired. Most of these