Very nice, love the perch and the eye looks great. The way his little feet wrap around the twig is great. I only wish you would have had his tail in focus as you had plenty of room to bump up you ISO. Still a fantastic image.
Beautiful bird, nice detail, great sky BG, nice perch, soft light. Joining the others I only wish for more DOF to have that tail sharp as well. Congratulations; very nice one.