What do you feed a newborn baby sun conure?

Just had a newborn baby conure hatch and need to know what to hand feed the chick. We are taking it out of the nest away from the mother right away as she killed the last bay. Need and answer FAST!!!
Please could someone tell me the best food to feed a baby sun conure? My pair had 2 new chicks and the mother dos not seem to be feeding one of them enough. I will be hand raising the babies and would like to know more about feeding, etc. thank you

I have no idea. I would try to grind up a worm in a blender or something. I would do something fast!