Welcome, Mike
A little flash and a little more room are what come to mind most when I view this image. This is a good looking bird with a nice head turn. I like that the head is sharp and the sharpness as well. It's a nice capture.
Really enjoyed photographing the Laughing Kookaburas on my trip to OZ. This is a neat looking bird.. Comp is a bit tight but good otherwise. Might just try lightning the image in post processing or fill flash as others have mentioned
Cool bird and nice pose. It does seem a bit tight and dark to me. I downloaded it and brightened it up a bit for reposting. All I did was brighten it a bit in levels and apply a little shadow highlight (amount of 14).