I'm meeting some friends in Klamath Falls for eagle photography. My question is whether I should take my Nikon 600mm F4E, which also requires a heavy tripod. (I can barely lift it, much less handhold it.) I'd want that lens if there were opportunities to see eagles fishing and I could set up in a stationary position. Otherwise, I'll just take a 500mmPF, which I can handhold. So does anyone have experience with Klamath Falls at this time of year? (Yes, we know about Winter Wings, but are going the week after the festival to avoid the crowds.) Thanks for any info.