In the second one you had your exposure compensation set to -0.67EV, but I still can't for the life of me figure out why your camera would choose 1/8000 as an appropriate shutter speed. Changing your metering mode from partial to spot may have helped some.
Your biggest problem may be that 70-200's are known to malfunction if they haven't shot ducks first. Canon tried to solve the problem with a limited edition box, but found they had to be live ducks. They're still fighting PETA on the shipping logistics for that one.

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. It has that bar in the view finder, but no matter what I change I cant make it go to the middle.
