A simplified AF system in comparison to the 7D II and 5DSR I use, but for bird photography I find single point and Zone AF more than adequate for birds in flight photography. The real winner I’m hoping is the 1.6 crop sensor with 32.5 MP which has got to be the best spec ever for bird photography. Here’s hoping!It's missing the 'Single AF Point with 4 expansion points' and 'Single AF Point with 8 expansion points' AF point selection modes that the 80D is also missing. 9-point "Zone AF" is not the same. The former give priority to the single selected point and use the expansion points only when the selected point can not achieve AF. The latter gives equal weight to all nine AF points and will AF on the area of highest contrast within the entire AF area of the nine Af points.
It would need a shutter rating higher than the 100,000 rating of the 80D, too.