ML240529081

影音備註

Behavior and other notes: An adult male Blue-winged Warbler responding to playback of three conspecific songs. He approached and started singing quietly with Type A2 songs, then he changed song type to a modified A1 and sang more loudly. The second cut is several minutes after the playback session and he seemed more relaxed. Here he was singing Type A1 and modified A1 songs. Recording Time: 0611 (UTC -4). Temperature 9C. Habitat: Eastern Deciduous Forest, open fields, roadside. Distance to sound source: 12 meters. Specific location: Indian Springs WMA, two-track road, Washington Co., MD. Latitude 39.719508, Longitude -77.937835. Elevation 245 meters. ID’d by sight and sound; ID confidence 100%. Equipment notes: Recorder HPF on at 80Hz, -12dB/octave.