Why can't we keep Nikon out of this?
How about talking about the Panasonic GH3 A M4/3 camera that's gennerating a lot of interest from pros. It has a magnesium wethersealed body for less than $1,300.00 It has 1080/60p 50Mbps IPB and 24p 72Mbps ALL-I video (better video specs than a 5D3 ).
And unlike the Canon 7D2 and the Nikon D4 the GH3 is actually available NOW.
I just saw this. A GH3 used on safari http://www.naturalexposures.com/corkboard/testing-panasonics-newest-micro-four-thirds-camera-the-gh3/ Check-out the first photo, this looks like a great birder/nature camera