Some stunning shots here John!
Some critique on the Post process,..
The flight shots it's usually best to leave some more room in fornt of the bird on your crop, I know it's cliche to say so , but it does help to give a better feeling of motion if the bird has room to fly into the image.
Most of your finished images are suffering from a combination of a poor monitor calibration, and low contrast/saturatiopn. Some of the color wash out may be natural, if they were taken during strong noonish sunlight. etc.. but the color casts I am seeing I assume are due to monitor calibration. I also think that some of these could do with some more sharpening on the subject, and some noise reduction on the back grounds in particular.