I found this Yellow-crowned Night-Heron in the shade on the roots of Mangrove trees. It did not seem to be bothered by my presence so I was able to get a few shots and then moved on so I did not bother the heron. Because it was sitting in the shade I used a -1 exposure compensation with aperture priority to get a proper exposure for the light colored bird in the dark shade. I also used ISO 1250 because I was handholding the camera and wanted a higher shutter speed. Even though it is a stabilized lens, with a 1.4X teleconverter, I wanted the higher shutter speed since the 400mm, with the 1.4X teleconverter and the 1.3X crop factor equals an effective focal length of 728mm.