Good job on your exposure and getting the bird sharp. I am find the bird a bit cramped in the frame and see quite a bit of noise in your Background. I think you may wish to try a loser crop.
These guys bring me as much excitement as the robins do as far as "first" spring sightings go! I really dig the perch and little bud on it. I agree the comp is rather tight as posted though. Don't forget to include your techs as this can help us with critique (such as diagnosing the noise...high ISO or big crop or processing?)