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The first is a beauty and looks very much like our Anhinga. For the first photo you used +1 EV compensation, the second only +2/3 yet the sky looks like it was just a bright (Iím judging by the change in the brightness of the sky. I suspect you needed to be at +1 1/3 for the second. Some of us prefer to use manual exposure to avoid the odd effects of backgrounds on the exposure as we are trying to expose the subject, not the background which is where evaluative metering systems go. Google Sunny 16 to learn about setting your exposure without using your cameraís meter. Also consider using an incident light meter or take light readings from neutral subjects such as the blue sky facing away from the sun, the palm of your hand, or foliage.