ML615032034
作者
日期
地点
- 年龄和性别
- 成鸟,性别未知 - 1
- 发声
- 鸣叫; 鸣唱
- 回放
- 未使用回放
媒体文件注释
Merlin Sound ID info: Black-capped Chickadee-30sec; American Crow-49sec; Common Redpoll-57sec; American Tree Sparrow-6.5sec; Recorded at 15:30:00 18/02/2024 (UTC) by AudioMoth 24F319025D5130B4 at low gain while battery was 4.5V and temperature was -1.8C. Frequency trigger (8.0kHz and window length of 16 samples) threshold was 0.5% with 1s minimum trigger duration.
观察细节
According to the first Merlin Sound ID analysis of this audio file, Blue Jays called at 46 sec mark in the recording (7:30 am - 8 AM). Was it a Gray Jay imitating a Blue Jay? Or was it a Steller's Jay imitating a Blue Jay? I've never heard a Steller's Jay sound like it. Another possibility could be a young raven. I reviewed juvenile raven calls. Most call notes are longer than the ones in my audio recording. However, they are similar to the short call notes in my audio. A third candidate for the mystery voice could be Black-billed Magpie. A flock of six often show up at day break for corn. The audio contains a snarling call or voice. That's how Nathan Pieplow describes this call in "Peterson Field Guide to Bird Sounds of Western North America." That's the voice of magpies. Another kind of magpie call begins at the 46 sec mark;
额外物种
技术信息
- 录音机
- Audiomoth
- 话筒
- 附件
- parabolic bowl
- 原始文件大小
- 16.18 MB