kHz
作者
Arthur A. Allen 该用户提供的媒体文件
David G. Allen 该用户提供的媒体文件
日期
地点
Howland's Island Refuge; Lower Pond
New York, United States
该地点产生的媒体文件 配图名录- 年龄
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- 性别
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- 行为
- 求偶、炫耀或交配
- 发声
- 鸣叫
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媒体文件注释
NOTES: A GROUP OF 5-6 CANVASBACKS COURTING AMONG THE LARGE FLOCK OF AYTHYA AMERICANA, ANAS STREPERA, ANAS ACUTA, ANAS CLYPEATA, ETC. ON THE SMALL LOWER POND. WHEN THE MALE CALLED HE OPENED HIS BILL SLIGHTLY AND GAVE A SINGLE 'CUCK'. WHEN HE THREW HIS HEAD BACK TO HIT HIS BACK AND THEN CAME FORWARD AGAIN, HE GAVE THE SOMEWHAT LOUDER 'CUCK-COO' AS A SWELLING THE SIZE OF A MARBLE FORMED BENEATH HIS BILL. THE FEMALE DID NOT OPEN THEIR BILLS BUT I THINK THE ACCOMPANYING CHATTER WAS MADE BY THEM. P.P. KEL. Number of individuals=AU5-6;. Other Behaviors: Court, Perform Visual Display. Habitat: Pond.
技术信息
- 录音机
- MAGNEMITE UNSPECIFIED MODEL
- 话筒
- Western Electric 633A
- 附件
- Parabola 101.6cm (40in)
存档信息
- 已数字化
- 30 Apr 2002 - Shelagh A. Smith