Its always fun to capture these Pied Kingfishers, as you are guaranteed some sort of action. One of the perches where the fish are mashed before going down the hatch.
Canon 50D
100-400 L IS USM @400mm
1/2000
F/8
ISO 400
Good exposure control despite what looks like harsh light conditions. I think the colour temp is fine, but I do agree with the blue cast on the feathers. In this case the fix is extremely easy: since you know there should be no blue at all in the image you can go into hue/saturation and desat the blue and cyan channels completely to rid of the cast without affecting the other parts of the image. I went ahead and did this, and while at it performed some eye doctor too.
Looks like there was a shadow creeping into the lower part of the perch and bird.