Whooping Cranes

Four Whooping Cranes have been hanging out at Quivira NWR, central Kansas, for the last few days. They weren't in the expected location at first, but after returning a little while later, closer to sunset, I found them in the expected location. Quivira is extremely dry now, after being drawn down and then not getting any rain for a while now. The Whoopers were pecking at the dead/dying carp that have been stranded by the low water levels. The birds started off a fair ways out in the marsh, but then amazing starting walking towards the 3 of us who were observing them from the road. I can't accurately guess how close they were, but it was close :). The experience was amazing, and the night was calm and beautiful. I didn't handle the lighting very well, as the birds were mostly backlit the whole time. I've tried to salvage what I can, especially this image with 3 of the birds at once. Luckily, I also took some video with my 7D, and it turned out much better than my still shots. This is a small crop from full frame, at 500mm. C&C always welcome and appreciated.