I feed my birds the raw/smoked fat strips. Not often, so far, only 3 times. I cut the pack in half, use one at a time, not the whole amount of fat in one go. They go completely loony for it! So much noise, stealing, dashing around and fighting. No other treat gets them this excited, they just loose their tiny heads over it, lol. Here is a video, if you haven't seen it yet. Here is a link to it.