kHz
- 年齡
- 未確定
- 性別
- 未確定
- 行為
- 求偶、展示或交尾
- 聲音
- 叫聲
- 回播
- 未確定
影音備註
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.
技術資訊
- 錄音機
- MAGNEMITE UNSPECIFIED MODEL
- 麥克風
- Western Electric 633A
- 配件
- Parabola 101.6cm (40in)
檔案資訊
- 已數化的
- 30 Apr 2002 - Shelagh A. Smith