ML33250401
作者
David Lambeth 该用户提供的媒体文件 档案
日期
地点
Grasslands n of GF Airport and East of CR 5
Grand Forks, North Dakota, United States
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媒体文件注释
Map of Grand Forks County showing the route surveyed for Yellow Rails on the night of June 4 and June 5, 2003. With regard to this map, I would note that available habitat for YERA has decreased because of conversion of some sections to cropland through the use of field tiling to remove excess water, and because some sections are now over-run by cattail.
观察细节
Listening for Yellow Rails by getting out of the car and listening for clicking in a pattern of alternating two and three clicks. This was at the end of a long night in which a total of 100-110 Yellow Rails were heard. I consider numbers conservative estimate of number present. This is the 4th e-bird report for the night of June 4 and 5. See the attached map for the route traveled.
技术信息
- 尺寸
- 2151 pixels x 1553 pixels
- 原始文件大小
- 2.52 MB