If you want a real exercise in futility, try taking photographs of hummingbirds on a slightly windy, overcast day. Not the smartest thing I've ever done. But it was still fun. And I learned to use the remote control on my camera. And took over 400 photos - none of which produced a good picture!! The remote control on my camera has to be activated from in front of the camera which I find kind of weird. And it resets itself from remote control to regular shutter press after a certain number of seconds of inactivity. Which means that you have to press the remote control every so often regardless of whether or not a hummingbird has made an appearance and if you don't, you have to physically go back to the camera and reset it to use the remote control, thereby scaring away any hummers who were finally deciding to approach the feeder while that strange black tripod and camera were sitting there. AND hummingbirds can move faster than a remote can trigger. Click, hummer hears click and is long gone before shutter releases, then shutter releases. Over and over and over. And over. Ok, lessons learned?
Insist on sunny day
Move feeder out from under the overhang
High, high shutter speed even for resting hummingbirds