Since people keep asking, here is a pic of my setup. I am using a device called Bird Photo Booth 2.0. It consists of this camera box, much like a trail camera, that has a macro lens on the top and a regular one on the bottom. Inside is a little shelf on which I place a small camera (sold separately, you can also use a smartphone or a GoPro) that has, amongst other things, a motion sensor function that I can set to take 10 pics per second. The bowl attachment comes with the camera as well. So whenever a bird makes it to the bowl, the camera takes pictures.