Anna's Hummingbird on singing perch

Yesterday I found myself scrambling around in a boulder field on the steep slope of the Deschutes River canyon in Central Oregon. I heard the "scratchy" song of a male Anna's Hummingbird, but it took me most of an hour to find his singing perch. When I did find him, he was about 20 ft. up in a pine tree on a bare branch announcing to the world that this was his territory. His unmistakable voice is much more conspicuous from 100 ft. away than his visible image is from 20 ft. A recording of an Anna's song can be heard at http://www.enature.com/fieldguides/detail.asp?recnum=BD0120.