I looked up from my spot on the river and happened to see these Ibis flying by. I am tempted to clone out the last one, but can't decide. Anyway I thought it turned out nice for a longer shot.
Canon 40D handheld
Canon 400 f/5.6L
Av @f/5.6 1/6400th
ISO 320
CWM @ +1.7
Cropped vertically only for pano feel
Even if leaving the sky the lighter tone, I think I would up the blacks to darken the birds. You could clone out (or even move) the last bird really easily.