I think you missed the focus by "thismuch". It appears (to my unprofessional eye) to be right below your subject.
At first I thought it was selective coloring too, but if you look at the tree/branch, you can see hints of brownish-orange. I suppose there could be some toning, but I think this is full color.
Do you have any image editing software?
The sharpness of the bird can be improved a great deal by using the right techniques.
You'll have to take my word on that, because you don't allow edits I can't show you.