Thrasher (Two Photographs and some notes on the resolution of long lenses)
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I like this little Thrasher perhaps because it was my first sighting of this kind of bird. We saw it from far off and took a few pictures. As we got closer it flew off. Whenever you use a long lens over a great distance, issues arise from air quality, to temperature, to the limits of the lens and sensor resolution that will impact the quality of the photo. To some degree sharpening and noise reduction will help, more the latter than the former. Very long lenses are very inviting but they have their limits (e.g. weight). It is a fact that the closer you are to the subject, regardless of lens, the better quality photograph you will get.