maybe check the focus points in your camera as well .the last one kind of looks sharper by the chain and clothes pins...not sure how your camera works but mine you can choose a focus point and it focus there so if i use the wrong point, the wrong part of the photo is in focus...ot but we put grape jelly out for the oriels and the woodpeckers love it to( junk food junkies?

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i try to get my shutter to 500+ for birds since they go so fast...if you are shooting from inside, if it's warm( or sometimes even when it's not) I open the window and screen which lets in lots more light