Miguel and I had the fortune to spend a couple of cold, fun and somewhat successful afternoons photographing eagles at the Clarksville lock and dam over the last couple of weeks. I really enjoyed the variety of ages of these birds as can be seen in the different plumages. During these extremely cold days with nice light, heat distortion becomes a terrible nuisance. Heat distortion is created by the warmer temperatures of the water causing warmer air to rise rapidly through the much colder air and thereby causing light refraction. The name of the game is being out there long enough and being fortunate enough to have a bird soar or grab a fish that is close enough to you so that this refraction does not destroy all that potential detail. Keeper rates have not been high in my attempts so far.
A Thousand Acres of Silphiums 