Tom Reynolds wrote:
It appears to me that the OM-1/150-400 did a significantly better job.
This confirms the opinion expressed on "Backcountry Gallery Forums", a Nikon/Sony forum, that for bird photography the only Sony that is worth getting over the Nikon D-500/D-850 in crop mode is the A1. This opinion was expressed by several Sony shooters. As an aside the conclusion was also that the only Nikon worth getting for bird photography is the Z-9. This was expressed by many Nikon shooters.
I couldn't imagine ever going back to a dinosaur brick like the D850. I've been tempted by the Z9, but Nikon's long lenses don't focus close enough to be practical for small subjects like the hummingbirds in my back yard.
The skies lightened up a bit this afternoon, so I grabbed a few more shots with the OM-1 and 150-400. This one is cropped in about 30%, just enough to centre the bird in the lower portion of the frame.
