kHz
作者
William V. Ward 该用户提供的媒体文件
日期
07:10
地点
Rogue River; Grants Pass
Oregon, United States
该地点产生的媒体文件 配图名录- 年龄
- 未说明
- 性别
- 未说明
- 行为
- 求偶、炫耀或交配
- 发声
- 鸣叫
- 回放
- 未使用回放
媒体文件注释
Two male Mallards are first heard on this tape, indicating pre-copulatory interest. Then there is a blank space on the tape. Next, one male mounts the female while the other male helps hold her neck down, all while the female squawks in the typical Mallard copulatory vocalization. Mallards in this area have been copulating since early April. Some hens are still on eggs, while several broods have hatched. General climate: Dry Cove density: Open. Habitat: Grassy riverbank lawn. Other Behaviors: Copulate, Perform Visual Display. Habitat: River. Elevation: 273 m.
技术信息
- 录音机
- MAGNEMITE 610E
- 话筒
- Dan Gibson P500
- 附件
- Dan Gibson Parabola 45.7cm/11cm (18in/4.3in)
存档信息
- 已数字化
- 15 Aug 2005 - Mike Andersen