The Pale Morning Duns are hatching again. Most imitations are predominantly yellow. Which is fine, in a way. Because the male bugs are yellow. But the females are predominantly light olive green. And the females are the ones most often taken by the fish. The males are a tad smaller and far more active and animated. The minute they pop up on the surface they wiggle vigorously, drift five feet or so and fly off. The females are a it larger and more lethargic. The females don't twitch. They ride the surface tension motionlessly, for ten feet or more before flying off. I've spent hours trying to photograph them on the spring creeks. Even to human eyes the females
seem to predominate, because they're the ones you see floating along like little insectivorous sailboats. The males fly off quickly and head straight for the bushes.