Thank you.
Settings wise, I go with whatever I can get away with. 95% of the time, I'm in manual mode. The perches I use are about 10-12 feet from the end of my lens and I try my best to keep the whole bird sharp (of this kind of size) so I'm usually at f8, which seems to work pretty well. I have the histogram visible in the VF and I try to expose as far to the right as I can, without clipping a load of whites. You'll get away with a little more here than you might expect if the histogram is just touching the right hand side but I experiment with it on the day, as different light can blow (or not) the highlights.
I work with f8 as my base aperture (in the hide), for DOF reasons. The rest of my settings depend on that, mainly trying to keep shutter speed above 1/400 sec and I will tweak the ISO to control that. I'm quite happy to go to ISO 3200 (even 6400 at times) on my R7. The files can be a little grainy in low light but ETTR does help. There comes a point though, especially towards the end of the day, when I will have to open up the aperture to whatever to avoid too high an ISO and keep a decent shutter speed. I have photographed (static) birds as low as 1/50 sec but you have to pick your moment carefully.
I'm usually using Servo AF, Single Point AF and animal eye detect, for birds. I move the single af point to suit, in the frame.
I don't bother with any of the fancy settings, (highlight priority etc) and I don't use any of the picture styles, I'm always in 'Standard' as I shoot in RAW and I'm a firm believer that apart from the basics, (shutter, aperture, ISO) , any tweaks should be done in post when dealing with RAW files. That said, there should be very little to do in post if you nail the file, save for cropping, maybe levels, maybe some masks for sharpness or local exposure, etc. I do use LR's noise reduction if a file is particularly grainy, it's very good if you're careful with the sliders.
I try not to get too involved with settings, to my mind, shutter speed, ISO and aperture are the most important ones, with a few other settings to help handling.
I am trialling Auto ISO though, today at f8 and a shutter speed of 1/400 sec for this image. I'm not sure if I like it and old habits die hard, I think I'll be sticking to being in full control of the basics myself.
There's probably a bit more to this, situation dependent on the day.