These black wasps are so nasty that they scare our hummingbirds. I even saw one that came out straight on the back of a hummingbird while it was feeding... They don't seem to be scared of humans either.
Went for a 6 Hrs drive to get to a special scrap yard yesterday. I took the D810 with the 16-35, 24-120 and 70-200 F4. The 70-200 never left the bag...
High iso and heavy crop make for a loss of sharpness, but I feel I'm still getting acceptable images. These Hummingbirds are so small and fast that I consider myself lucky to even get them in the frame when they are not on the feeder.
I wanted to compare my results of the D810 vs D7200 so I did a few with similar (2000) iso. Previous post was 7200. I think the D810 focusses faster than the D7200 but it's kind of hard to really judge.