If you have a bird who is still asking for comfort feedings, but won 't eat their chop, try this: 1) Thaw out a days worth of chop or so 2) blend it with a bit of water 3) heat it up to the appropriate temperature 4) feed with a syringe! For my cockatoo, a days worth of chop is just about right for a comfort feed. He doesn't seem to prefer formula over it. I don't recommend this for birds who don't get enough food on their own (who still need formula to survive/are still babies), as I am not a baby bird nutrition expert, and I am not sure if They'd get enough nutrients. But, for a mostly weaned bird who no longer nutritionally need their formula, this is better than human baby food, as it contains everything they don't eat on their own.