ML638207812

影音備註

Bubbling display. I thought the bill was hitting the water but on further research I was wrong, it was the chest. Good example spectrogram at 1min33s Normalized to -3dB with 240Hz highpass filter.

觀察細節

Bubbling display. I thought the bill was hitting the water but on further research I was wrong, it was the chest. Good example spectrogram at 1min33s.

其他鳥種

• Red-winged Blackbird Agelaius phoeniceus
• Clay-colored Sparrow Spizella pallida
• Song Sparrow Melospiza melodia
• Northern Yellow Warbler Setophaga aestiva