ML645359344

媒体文件注释

amplified and high pass filtered in audacity

观察细节

exact, first bird giving the classic sharp high “wheer!” calls right at the transition from northern hardwoods to montane spruce-fir, second calling in the col bw the false summit and Belvidere, then a lovely pair just below the summit lookout facing the mine: singer and nearby bird calling. Recorded the first bird and the singer

额外物种

• Blackpoll Warbler Setophaga striata
• Yellow-rumped Warbler Setophaga coronata
• Golden-crowned Kinglet Regulus satrapa
• Red-eyed Vireo Vireo olivaceus