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ML267590321

Whooping Crane Grus americana

報告

提供者

John Patterson 來自這個貢獻者的影音 個人檔案

日期

2日 10月 2020年 eBird 紀錄清單 S74312183

地點

Marcelin area
North Battleford, Saskatchewan, Canada
來自這個地點的影音 影音名錄
地圖
地圖 座標: 52.9266399, -106.7925695
性別與年齡
雌成鳥 - 1; 雄成鳥 - 1
行為
覓食或吃東西
聲音
叫聲; 重唱
回播
未使用回播

影音備註

The pair was observed without disturbance for half an hour from a seldom-traveled road using the vehicle as a blind. The birds were seen from a distance, walking slowly, parallel to the road and about 100m from it while foraging in a harvested field. I was able to drive down the road unseen while they were behind a ridge and wait for them to appear. Audio recording began when they emerged from behind the ridge. The first three vocalizations (single calls) are widely separated at 0:03, 0:39 and 2:22. A more distant pair of Whooping Cranes is heard at 3:11 to 3:24 and elicits a response from both birds of the primary pair at 3:30. From 3:30 to 7:58 both birds of the primary pair vocalize more frequently with both individual and unison calls, ending with complex unison calls. Recording continued for two minutes after the vocalization at 7:58, but nothing further was heard. The pair continued to forage for a further 20 minutes and then flew off.

技術資訊

錄音機
Sound Devices 702T
麥克風
Telinga stereo
配件
22" parabola
原始檔案大小
136.31 MB

Cornell Lab of Ornithology

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