ML539727

影音備註

Adult male Sage Thrasher singing at sunrise. As the sky lightened, he moved from the sage bush to the posts of the fence to the south. There he began to sing longer songs at a faster rate. These cut represent the transition from dawn singing to more typical diurnal singing behavior. This is the same individual as in ML539726. Equipment Notes: SD 702 HPF on (80Hz, -12dB/octave). Elevation: 1485 m.