Mallard notes, v4295
Page 339
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Mayhew 1958 Mallard 42. June 6 Gray Lodge Refuge, Sutter Co., Calif. Nest 23 (cont.) - Temp. - 30°C.; R.H. - 74% (dropped to 67% & stayed there until temp. reading stabilized). Nest 11 - The ♀ was flushed from 7 eggs. The nest contains lots of down, & is about 3 feet from water. Temp. - 32°C.; R.H. - 74%. Nest 32 - The ♀ was absent when I arrived, but the eggs were warm. There was lots of down in the nest, along with 8 eggs. The cover of bull thistles was about 30" high. The nest was about 30 feet from water. Temp. - 28°C.; R.H. - 70%. Nest 26 - The ♀ was flushed from 4 eggs. There was lots of down in the nest. The nearest water was about 100 yards away. Temp. - 30°C.; R.H. - 70%. Nest 31 - The ♀ flushed from 6 eggs. There was a fair amount of down present in the nest. The nearest water was about 50 yards away. The cover of bull thistle & pigweed was about inches high. Temp.- 25°C.; R.H. - 75%. Nest 17 - A ♀ flushed from 5 eggs. There was lots of down present. The nearest water was at least ¼ mile away (some pools nearby had dried up). Temp. - 35°C.; R.H. - 56%. Nest 21 - A ♀ was flushed from 7 eggs. There was no down in the nest. The nearest water was about 200 yards away.