A juvenile Gyrfalcon was a nice surprise at East 90 at 2pm this afternoon. I was enjoying the Short-eared Owls when this bird shot through the area about a hundred feet from me, flushing the dabbling duck flock it was targeting. After missing, it continued on and flew East, somewhat in the direction of Edison. My photos were poor because I didn't have time to adjust settings, and the Gyr was flying away from me most of the time I watched it. It did briefly turn so that I could see its head and underparts. Quite large falcon with broad wings, pale underparts with streaking, limited dark on the wing tips, weakly defined malar stripe, mostly uniform sandy-gray on the top of the wings, gray underwings. Didn't relocate the bird when I briefly checked the area it was flying towards, but I'm sure it's around. Perhaps getting late in the season for this species in Washington?