In addition, the Olympus body has IBIS (in-body image stabilization) allowing sharp images as low shutter speeds....a real boon for hand-holding while tracking little birds.
Another bonus of the Oly camer is that it is a micro 4/3 system...meaning that it has a 2x crop factor...making the 300mm lens a 35mm equivalent of 600mm. I added the 1.4x and 2x converters, but most likely won't need them for much of my imaging.
Yesterday, here in Ohio, we had a beautiful, sunny day. Cold, but great light for testing out the new combo on winter birds. I headed to Buck Creek State Park at the Overlook area. Here's some of my walk around images.