ML587098881
作者
日期
地点
- 年龄
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- 性别
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- 回放
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媒体文件注释
Usual disclaimers: Cellphone audio (no app, no external contraptions), so the usual distortion with a .m4a file. Because of heavy road noise, I applied a stronger than usual high-pass filter, dropping from 1.2 kHz (the goldfinch is well above that cutoff). Rolloff 6 dB.
观察细节
Including one along 30th south of Valmont a few hundred feet giving an amazing display of vocal mimicry. The audio, below, includes imitations of, at the very least: Hairy Woodpecker, 1.2 sec.; Black-billed Magpie, 1.8 sec. & elsewhere; House Sparrow, 3.8 sec. & elsewhere; Northern Flicker, 6.1 sec.; American Goldfinch, 7.3 sec. & elsewhere; House Wren, 12.0 sec. & elsewhere; Western Wood-Pewee, 16.6 sec.; (presumptive) Lazuli Bunting, 19.0 sec.; and (presumptive) Plumbeous Vireo, 22.6 sec.
技术信息
- 录音机
- 话筒
- 附件
- 原始文件大小
- 2.46 MB