....I have looked at the crop following Trev's post #5 and I have given the maximum space for the bird 'to look into' that I can while avoiding a very ugly and hence dominant post - It could possibly be Photoshop'd out but that would be a lot of work to do properly and not worthwhile for this photo.
The image you see is the full height of the original landscape shot and I really like the blues and greens in both the top and bottom of the background bokeh. I had considered cropping square but would have then lost those very attractive elements. Furthermore, cropping so closely to the bird loses all the atmosphere of its environmental setting - I have tried it.
For me, photography is capturing and creating an image and picture and not just a technically perfect record. Achieving both is my holy grail.
....Indeed I am,
very happy with the background. As I have given reasons for earlier in this discussion. Personally I do not worship at the altar of no-noise-allowed and this is a very subjective subject in which there is no right or wrong, in my opinion.
....This shot was handheld and grabbed very quickly indeed and without the time to consider and change my shutter speed. I just had time to focus and snap.
Why would using a monopod end up with an image of this quality at those settings, please? (The shot was handheld and completely unsupported).
....I always try and do minimal PP work but this was shot in RAW, tweaked in Apple's Aperture and finally High Pass Filter sharpened (my last process) as a TIFF in Photoshop. I didn't know about the sharpen-at-final-stage tip, so thanks for that. Perhaps I should have another go at it, afterall I am a beginner with PP as well.
....In the exact science of hindsight and far more DSLR experience I don't doubt I could have zoomed back instead and I most likely had the lens set to the longer minimum focal distance because I had seconds earlier being shooting this same Robin in a tree. It was as if he saw my camera and came rushing in to have a close-up! Although he was more likely to have been telling me "Enough with the photographs - Give me 5 dollars! (or some mealworms)".
This photo clearly isn't going to win any awards but as part of my DSLR learning curve I am pleased with it. I am very grateful for the feedback and I strive to find my holy grail.
I will of course be posting more bird photos for feedback. Thanks