An example of what 45 megapixels and software can achieve, the Peregrin was on the North shore I was in the Gazebo hide, 1st is what I saw, 2nd a crop of that then a couple of upscaling runs 2x & 4x
Belvide Sunday raining, gloomy and the shoreline a long way away, nothing to do but see what the camera can do, the 1st Chaffinch was @ 2800 ISO, the 2nd 12800 ISO