I've done the same thing but with the heals from bread after keeping in the fridge to dry out. I don't give them too much bread but they will follow me anywhere to get some. I crinkle and shake the plastic so they associate a sound with treats
My chicks are now 7 wks. Hoping the RIR on the left is a roo. Tail feathers are completely different than other chicks.
Actually. Tail feathers just started coming in about 2 weeks ago