My camera bag includes (as at July 2017:
Nikon D7500 body,
Nikon 600mm F/4, ED VR
Nikon 2x and new 1.4x Teleconverters,
Nikon 105mm F/2.8 Micro Nikkor (macro)
Manfrotto carbon fibre tripod with Jobu J3K gimbal (mark2).
Swarovski 8.5x42 SV
On the lookout for:
In hiking mode, the kit is carried on a Scopac. Circular polariser and neutral density (ND2) filters are also used when conditions demand them. I carry about 200 gigs of memory on several separate cards. I generally shoot in RAW. For slower moving subjects, I switch to 14 bit which adds about 10% to the file size. Nikon Capture NX is used to process the images. I also use Adobe Light Room.
If space and weight allows on foreign trips, I take my laptop (Surface Pro 4) and download all images each evening.