ML205371

媒体文件注释

On the edge of the marsh near the Nature Conservancy Ball Creek Ranch preserve. Habitat: Freshwater Marsh. Equipment Notes: Panasonic WM61A electret omnidirectional microphone element in 24-inch Edmund Scientific parabola. Two microphone elements, one for each channel. Differential gain for the two channels. Low cut filter at 300 Hz probably in place.

额外物种

• Red-winged Blackbird Agelaius phoeniceus
• Common Yellowthroat Geothlypis trichas
• Sora Porzana carolina