Love the landing pose and the wing spread. I only wish for a little more eye contact, but that case the bird would not be landing on the perch I guess :-). Well done.
I'll take it; with more eye contact, you'd have a bird tripping over the branches. As you said, he's focusing and concentrating. You chose the right weather for a shot like this, and you were in the right position. The implication therefore is that the shot was no accident, that it was something you planned. I see choosing, planning, and patient waiting here. I see a photographer who knew what he was after.