Originally posted by clackers Not this again. (Rolls eyes)
Please let me clarify: I have the K-3II and the K-1 and I want to shoot birds, which camera do I grab? The K-3II. Would I hesitate to shoot birds with the K-1? No, not for a second, it will work fine. But, IMHO, for that particular application the K-3II is marginally better because of the lighter camera weight and faster fps. I am not as young as I used to be and for me the K-1 is heavy for holding overhead and shooting, the slightly lighter K-3II is easier. (For Me, YMMV)
The K-1 is not going anywhere, it is my go to body and will remain that for the foreseeable future. I was only trying to point out that different bodies have different advantages for different situations. I also carry a Sony RX-100 for shooting when that is the best body for the job. And I don't hesitate to use my cell phone if that is the best tool for a particular job.