Bob these are great captures of rare birds.
I'm not claiming to be an expert but as the light was very harsh(bright full on sunshine),
I would be inclined to decrease exposure and brightness levels slightly in pp
it helps with the colour/contrast and definition in my view.
You did the good bit capturing the action and rarities, controlling the light is way more difficult with wildlife photography,
having spent literally hundreds/probably thousands of hours over the years photographing wildlife in it's natural environment I got a bit frustrated,
these days I have less time for this type of thing, but I do admire anyone prepared to put in the hours!
At the end of the day it doesn't matter what gear one uses, light will always be the dominant
factor in ensuring optimum results.
Edited by wildoat, 08 August 2012 - 22:10 .