I am comparing some of your bird photos with examples I've taken by downloading some of your crops. However, I don't know whether yours are 100%. For example, this one is 1024x1024 but I estimate from the full shot that it is about 1600x1600 in the original and has been reduced. Is this so?
5D IV, 5DS R, 7D II, EOS-M, Powershot G3 X, 400mm DO II, 300/2.8 II, 1.4xTC III, 2xTC III, EF 1.8 STM, EF 70-200/4 IS, EF 24-105, 15-85, 100-400 II, Sigma 10-20, Sigma 150-600mm C, EOS-M5 15-45, f/2 22, 11-22, Samyang 8mm f/2.8 fisheye