I like this for the perch, but I wonder if the perch overpowers the bird. The background is pretty much as you see it, but I did play around with it a bit, so let me know if I messed up somewhere.
Pertinent technical details or techniques:
Canon R5; 100-500 at 500 mm; 1/1000 at f7.1, +1/3 EV; ISO 4000
The BG looks great to my eye, Allen. The perch does grab my eye a bit - did you consider a square composition, cropping from the bottom? Also, a slightly more closed aperture might have been better, but hindsight is a wonderful thing! Colours and position of bird look excellent.
Oh what a great shot of a chickadee just doing its thing! The perch is great, but a tad large for this little one. If it was a blue jay or something of that size I’d say leave it. A crop to eliminate the stump starting just above the two big fronds of moss might work to show it, but not so much of it. And it looks just a trifle cyan to me. Kind of yellowish overall. Maybe take the highlights in the breast down a smidge? It’s snowing now, but the birds are active in the yard so I might have to go out with the long lens. You’ve inspired me!