Yesterday at 5:04 AM, while starting my USGS breeding bird route on the road at the top of Boreas Pass , I heard at least two Fox sparrows singing with the pre-dawn chorus that included white-crowned and Lincoln’s sparrows, robins, and mtn. bluebirds. I had two more singing fox sparrows along the road between the top of the Pass and Como. I have previously never heard more than one on this route.
Paula Hansley
Louisville