Birds act very different if a human is in sight. Looking at them with a security camera lets me see far more of their actions than I have ever seen before. They can still see you even when you look out a window.
I have the still camera focused on the same feeder, on a tripod, and when I see a bird on the feeder, I use a remote control to take the picture. This way, they never see a human. The do look at the camera because I use the Red-eye reduction feature and the first flash gets their attention unless they are used to the flash. It seldom alarms the birds though.
I had been thinking about doing this for years, so I bought a camera with remote control capabilities. Then I found out they didn't make the remote control. So, I was delayed a few months trying to find a remote that would work, then I had to build my own. It has worked well from the very first try.
It actually works better than I had thought it would.
Sometimes you win one.