Quote Originally Posted by Dave Throgmartin View Post
Song bird photos that aren't staged in some manner are very difficult. I have a stick located close to a bird feeder. I wait for the birds to hit the stick and then take the photo.

2018_11_10_1133_LR_upd_8x10 by dthrog00, on Flickr

Using gear that is not extremely expensive this is the only way to go IMHO. The 80D is a modest camera and 100-400 II is fairly spendy, I find it makes a good combo. A 1DX with $10,000 lens it is not, but it is good enough for my needs.

More basic stuff can work fine too. This is with a 60D and 70-200 f/4 L USM (non-IS) with a gen II 1.4X extender.

2013_03_05_3368_upd by dthrog00, on Flickr

Dave
I think the lens is more important than the camera body for a bird photography "set up". The version II 100-400mm Canon is an extremely sharp lens and if your perches are set within range to get your subject relatively large in the frame you can achieve excellent results with most cameras. The full frame sensors of course will give better high ISO performance whereas the 1.6 "crop sensors" may provide more pixels on the subject. My son uses a Canon 6D Version I and has really nice results.