Burton Island DE is a very good bird spot when kayaking at dawn. The birds have roosted for the night and you can drift very close. The downside is that the sun rises and the western part of the island is still in deep shadows. The Egret and Little Green Heron let me drift fairly close before they took flight. The low light focus is pretty good, the next generation of sensors and noise removal will help for these conditions. I feel the low light focus of the Nokon Z9 with the Nikon 180-600 is good considering the lighting.
NIKON Z 9 600mm f/6.3 1/4000s 25600 ISO +1.0 EV
NIKON Z 9 600mm f/6.3 1/4000s 25600 ISO +1.0 EV
NIKON Z 9 600mm f/6.3 1/4000s 25600 ISO +1.0 EV
NIKON Z 9 600mm f/6.3 1/4000s 25600 ISO +1.0 EV
NIKON Z 9 600mm f/6.3 1/4000s 25600 ISO +1.0 EV